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Ideal for sending statements, official notices, or client correspondence, these envelopes are designed to meet the needs of high-volume, high-standard mailing environments. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-span-full\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 4.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 9.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Smooth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Paper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePaper weight:\u003c\/strong\u003e 24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e Gum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlap:\u003c\/strong\u003e Commercial Flap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope size:\u003c\/strong\u003e #10 - 4 1\/8 x 9 1\/2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope seam:\u003c\/strong\u003e Diagonal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope opening:\u003c\/strong\u003e Booklet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHas window:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow position:\u003c\/strong\u003e Left Window\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow position dimensions:\u003c\/strong\u003e 15\/16 from left 4 1\/16 from right 2 1\/2 from top 9\/16 from bottom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow size:\u003c\/strong\u003e 4 1\/2 long by 1 1\/8 wide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope flap size:\u003c\/strong\u003e 9 7\/16 long 1 3\/4 wide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Stamps.com Supplies","offers":[{"title":"Default Title","offer_id":60099816358174,"sku":"ST100936","price":60.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0881\/4837\/7886\/files\/Gemini_Generated_Image_vta1ctvta1ctvta1_74110a1f-0dfc-4a8a-8921-a857d9472d4f.jpg?v=1791923614"},{"product_id":"white-24lb-10-square-flap-envelopes-4-1-8-x-9-1-2-with-peel-seal-1","title":"White 24lb #10 Square Flap Envelopes (4 1\/8 x 9 1\/2) with Peel \u0026 Seal","description":"\u003cdiv class=\"col-span-full\"\u003e\n\u003cp\u003eDiscover a balance of practicality and polish with #10 Square Flap Envelopes (4 1\/8 x 9 1\/2), crafted from smooth 24lb white paper. The peel \u0026amp; seal closure offers a quick, mess-free sealing experience, while the interior security tint keeps confidential information under wraps. With their modern square flap and bright white finish, these envelopes strike the perfect tone for both business and personal communication. Whether you’re sending invoices, formal letters, or client correspondence, they provide a clean and professional look with dependable performance. Choose Envelopes to simplify your process while elevating your presentation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-span-full\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 4.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 9.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Smooth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Paper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePaper weight:\u003c\/strong\u003e 24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e Peel \u0026amp; Seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlap:\u003c\/strong\u003e Straight Flap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope size:\u003c\/strong\u003e #10 - 4 1\/8 x 9 1\/2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope seam:\u003c\/strong\u003e Side\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope opening:\u003c\/strong\u003e Booklet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Stamps.com Supplies","offers":[{"title":"Default Title","offer_id":60099816423710,"sku":"ST100941","price":60.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0881\/4837\/7886\/files\/75746-1.png?v=1791995533"},{"product_id":"white-machine-insertable-24lb-10-window-envelopes-4-1-8-x-9-1-2-with-peel-seal-1","title":"White Machine Insertable 24lb #10 Window Envelopes (4 1\/8 x 9 1\/2) with Peel \u0026 Seal","description":"\u003cdiv class=\"col-span-full\"\u003e\n\u003cp\u003eExperience the unparalleled excellence of #10 Window Envelopes (4 1\/8 x 9 1\/2), designed to bring ease, professionalism, and security to every mailing. Made from smooth 24lb white paper, these envelopes offer a clean, crisp appearance while withstanding the demands of high-volume use. The pre-installed peel-and-seal closure allows for quick, mess-free sealing, while the front-facing address window saves time and reduces labeling errors. Optimized for machine insertion, they’re ideal for billing, statements, or corporate communications. With Envelopes, you get more than a mailing solution—reliability, precision, and a touch of modern efficiency in every send.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-span-full\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 4.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 9.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Smooth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Paper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePaper weight:\u003c\/strong\u003e 24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e Peel \u0026amp; Seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlap:\u003c\/strong\u003e Straight Flap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope size:\u003c\/strong\u003e #10 - 4 1\/8 x 9 1\/2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope seam:\u003c\/strong\u003e Side\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope opening:\u003c\/strong\u003e Booklet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHas window:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow position:\u003c\/strong\u003e Left Window\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow position dimensions:\u003c\/strong\u003e 3\/4 from left 4 1\/8 from right 2 7\/16 from top 9\/16 from bottom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWindow size:\u003c\/strong\u003e 4 1\/2 long by 1 1\/8 wide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope flap size:\u003c\/strong\u003e 9 7\/16 long 1 3\/8 wide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachine fit:\u003c\/strong\u003e Machine Insertable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Stamps.com Supplies","offers":[{"title":"Default Title","offer_id":60099816456478,"sku":"ST100942","price":60.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0881\/4837\/7886\/files\/75761-0.png?v=1791995533"},{"product_id":"white-28lb-10-regular-envelopes-4-1-8-x-9-1-2","title":"White 28lb #10 Regular Envelopes (4 1\/8 x 9 1\/2)","description":"\u003cdiv class=\"col-span-full\"\u003e\n\u003cp\u003eDiscover the perfect fusion of everyday functionality and refined presentation with #10 Regular Envelopes (4 1\/8 x 9 1\/2), expertly crafted from smooth, 28lb white stock. Designed to handle the demands of frequent mailing while maintaining a crisp, professional look, these envelopes are ideal for business correspondence, personal letters, and everything in between. The commercial flap ensures a clean, secure seal every time, while the easy-seal closure adds convenience to your routine. Durable, sleek, and flawlessly sized for standard documents, these envelopes offer more than just utility—they elevate your message with precision and polish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-span-full\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 4.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 9.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Smooth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Paper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePaper weight:\u003c\/strong\u003e 28\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e Gum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlap:\u003c\/strong\u003e Commercial Flap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope size:\u003c\/strong\u003e #10 - 4 1\/8 x 9 1\/2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope seam:\u003c\/strong\u003e Diagonal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvelope opening:\u003c\/strong\u003e Booklet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Stamps.com Supplies","offers":[{"title":"Default Title","offer_id":60303930032414,"sku":"ST100937","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0881\/4837\/7886\/files\/35532-0.png?v=1791995533"}],"url":"https:\/\/supplies.stamps.com\/collections\/custom.oembed","provider":"Stamps.com Supplies","version":"1.0","type":"link"}