--- product_id: 74615098 title: "Double Window Envelopes Self Seal - #9 Security Envelopes for Quickbooks Invoices, Business Statements, Document Secure Mailing, Peel and Seal Adhesive, Tinted White Envelope, 3 7/8 x 8 7/8\", 500" brand: "intock" price: "£4.90" currency: GBP in_stock: false reviews_count: 3 category: "Office Product" url: https://www.desertcart.co.uk/products/74615098-double-window-envelopes-self-seal-9-security-envelopes-for-quickbooks store_origin: GB region: United Kingdom --- # Double Window Envelopes Self Seal - #9 Security Envelopes for Quickbooks Invoices, Business Statements, Document Secure Mailing, Peel and Seal Adhesive, Tinted White Envelope, 3 7/8 x 8 7/8", 500 **Brand:** intock **Price:** £4.90 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Double Window Envelopes Self Seal - #9 Security Envelopes for Quickbooks Invoices, Business Statements, Document Secure Mailing, Peel and Seal Adhesive, Tinted White Envelope, 3 7/8 x 8 7/8", 500 by intock - **How much does it cost?** £4.90 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/74615098-double-window-envelopes-self-seal-9-security-envelopes-for-quickbooks) ## Best For - intock enthusiasts ## Why This Product - Trusted intock brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description ★ Your printed Quickbooks invoices fit perfectly. Intock #9 double window envelopes are designed to fit Quickbooks and other computer printed invoices, business statements, and legal documents. Our left window envelopes ensure that the invoices stay exactly in place. The window locations are positioned perfectly to show the addresses while keeping any confidential information invisible. ➢ Size: 3 7/8” x 8 7/8”, specially designed to fit Quickbook and other standard printed invoices. Invoices slip in easily and stay securely without sliding all around. ➢ The 13/16” x 3 ½” top window, positioned 3/8” from the left and 2” from the bottom, just perfect for showing the sender’s address. ➢ The 1” x 4” bottom window, positioned 3/8” from the left and 1/2” from the bottom, ensures the recipient's address to show up without revealing other sensitive information. ★ Ultimate way to keep your business secure With our premium 27 lb paper, precisely-designed windows, unique security tint design, and strong adhesive, you are rest assured that your sensitive business information is secure. ★ Professional business image It can be a bad impression when your recipient receives a flimsy or low quality mail. That is why Intock’s self adhesive envelopes are with 27 lb premium white wove paper (the thickest on market) and the strongest adhesive for the first class standard. ★ Save time and cost with our peel and seal envelopes. Forget about licking, water, or glue, Intock’s strong self seal envelopes makes bulk mailing so much easy and quick. Just peel the strip, press to create a long lasting seal. ★ 100% money back guarantee We stand behind our products. If our invoice envelopes are not what you are looking for, or does not meet your expectation, please return them for 100% refund. ## Features - ✓ DOUBLE WINDOWS SECURITY BUSINESS ENVELOPES - Perfect fit for Quickbooks and other printed invoices, legal documents, and business statements. Size: 3 7/8 x 8 7/8”. Dual windows show essential information, without leaking out sensitive details. The 13/16 x 3 ½” top window is positioned 3/8” from the left and 2” from the bottom. The 1 x 4” bottom window is positioned 3/8” from the left and 1/2” from the bottom. (DO NOT FIT CHECKS.) - ✓ PREMIUM QUALITY - No more flimsy and cheap envelopes. See quality in every detail from Intock self stick envelopes. Keep professional first-class mailing look and feel with out 27 lb white wove envelope paper (the thickest on market) and strong adhesive all the way through to your recipient. - ✓ EXCELLENT SECURITY SEALS -Sensitive content will not be visible with our premium 27 lb paper and unique security tint design. - ✓ SELF SEALING ENVELOPES - Save time and cost with our strong, quick, and easy self seal adhesive envelope seals. No more licking envelopes or water required. Just peel the strip and stick, and your envelopes are guaranteed to stay sealed through transit. Your accounting housekeeping becomes so much easier. - ✓ BEST VALUE - Each pack comes with 500 quality double window envelopes 9 and is perfect for bulk mailing seals or daily office supplies, saving you time and energy from frequent visits to Office Depot. ## Images ![Double Window Envelopes Self Seal - #9 Security Envelopes for Quickbooks Invoices, Business Statements, Document Secure Mailing, Peel and Seal Adhesive, Tinted White Envelope, 3 7/8 x 8 7/8", 500 - Image 1](https://m.media-amazon.com/images/I/41L+zVlVmgL.jpg) ## Customer Reviews ### ⭐⭐ Poor quality paper *by S***E on Reviewed in the United States on March 14, 2019* Very poor quality, didn't realize before ordering ### ⭐⭐⭐⭐ Received as Ordered *by C***E on Reviewed in the United States on October 18, 2019* No issues ### ⭐⭐⭐⭐⭐ Five Stars *by L***A on Reviewed in the United States on August 1, 2018* Great quality. Perfect for quick books invoices and payments. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/74615098-double-window-envelopes-self-seal-9-security-envelopes-for-quickbooks](https://www.desertcart.co.uk/products/74615098-double-window-envelopes-self-seal-9-security-envelopes-for-quickbooks) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-17*