--- product_id: 18011556 title: "NextDayLabels #9 Double Window Check Envelopes - 500 Pack Ready-Seal Security Tinted Envelopes for QuickBooks, Sage 100, Blackbaud Checks - Self-Sealing Laser-Compatible - Made in USA" brand: "nextdaylabels" price: "843 kr" currency: DKK in_stock: true reviews_count: 13 category: "Next Day Labels" url: https://www.desertcart.dk/products/18011556-nextdaylabels-9-double-window-check-envelopes-500-pack-ready-seal store_origin: DK region: Denmark --- # Ready-seal self-adhesive closure Precise dual window alignment Security tint for privacy NextDayLabels #9 Double Window Check Envelopes - 500 Pack Ready-Seal Security Tinted Envelopes for QuickBooks, Sage 100, Blackbaud Checks - Self-Sealing Laser-Compatible - Made in USA **Brand:** nextdaylabels **Price:** 843 kr **Availability:** ✅ In Stock ## Summary > 📬 Seal the deal with security and style—your checks deserve the best! ## Quick Answers - **What is this?** NextDayLabels #9 Double Window Check Envelopes - 500 Pack Ready-Seal Security Tinted Envelopes for QuickBooks, Sage 100, Blackbaud Checks - Self-Sealing Laser-Compatible - Made in USA by nextdaylabels - **How much does it cost?** 843 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/18011556-nextdaylabels-9-double-window-check-envelopes-500-pack-ready-seal) ## Best For - nextdaylabels enthusiasts ## Why This Product - Trusted nextdaylabels brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Instant Seal, Zero Fuss:** Ready-seal adhesive closure means no licking, no mess—just fold, press, and go for high-volume mailing efficiency. - • **Bulk Savings, Made in USA:** 500 envelopes per box deliver unbeatable value and quality you can count on, proudly manufactured stateside. - • **Confidentiality You Can Trust:** Security tint interior obscures sensitive info, protecting your business from mail theft and prying eyes. - • **Laser-Compatible & Business-Ready:** Designed for smooth laser printing and compatibility with QuickBooks, Sage 100, Blackbaud, and more—streamline your workflow. - • **Flawless Fit for QuickBooks & More:** Dual windows perfectly positioned for seamless check and voucher visibility—no guesswork, no reprints. ## Overview NextDayLabels #9 Double Window Check Envelopes offer a professional, cost-effective solution for businesses needing secure, perfectly aligned envelopes compatible with QuickBooks, Sage 100, and Blackbaud checks. Featuring a ready-seal self-adhesive closure and security tint interior, these 500-pack envelopes ensure privacy, convenience, and reliable performance—all proudly made in the USA. ## Description desertcart.com : NextDayLabels #9 Double Window Check Envelopes - 500 Pack Ready-Seal Security Tinted Envelopes for QuickBooks, Sage 100, Blackbaud Checks - Self-Sealing Laser-Compatible - Made in USA : Office Products Review: Excellent product at a third of the price - highly recommend - We use a proprietary software system for churches (widely used in the US). We were told (of course) that only their envelopes would fit their checks. After buying one box for about $120 after shipping I determined never to do that again. I spent quite a bit of time measuring and comparing different alternatives, and decided to take a shot with these - I figured with "guaranteed to fit" I couldn't lose. I had previously had great luck with different #10 double-window envelopes from desertcart. These are excellent! Well made and they appear to be sturdy enough. The adhesive works very well, I have not had to reinforce it. I was most concerned about the window placement - would they fit properly without a lot of fiddling and re-positioning the print fields? They fit our checks perfectly with no drama. The window placement is about perfect. In fact, better than the "proprietary" models, these don't reveal anything on the memo line, but the addresses are perfectly visible. As others have noted, they are just large enough to also accommodate return correspondence such as a tri-fold letter-size invoice copy. Not so large that the check floats around, obscuring the address. I am very happy with these and I am spreading the word to others! Review: Perfect fit! - These envelopes worked perfectly! The perfect fit for my checks ## Features - #9 DOUBLE WINDOW CHECK ENVELOPES - 500 self-seal envelopes measuring 3-7/8" x 8-7/8" with dual windows perfectly positioned for QuickBooks checks, business checks, and payroll vouchers - READY-SEAL SELF-ADHESIVE CLOSURE - No licking required; simply fold flap and press for instant secure seal; saves time and improves hygiene during high-volume check mailing - SECURITY TINT INTERIOR - Interior pattern obscures confidential check information and account numbers; helps protect against mail theft and unauthorized viewing - QUICKBOOKS COMPATIBLE DESIGN - Windows align precisely with QuickBooks, Quicken, Peachtree, and standard business check formats; compatible with top-stub and voucher checks - 500 ENVELOPES PER BOX - Bulk quantity provides cost-effective solution for businesses of all sizes, accounting departments, payroll processing, and bookkeeping operations; Made in the USA by Next Day Labels ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B011S98IR8 | | Best Sellers Rank | #10,091 in Office Products ( See Top 100 in Office Products ) #55 in Business Mailing Envelopes | | Brand Name | NextDayLabels | | Closure Type | Self-Seal | | Color | White | | Customer Reviews | 4.4 4.4 out of 5 stars (569) | | Item Dimensions L x W | 8"L x 3"W | | Item Shape | Rectangular | | Item Weight | 0.01 Ounces | | Manufacturer | Next Day Labels | | Number of Items | 500 | | Occasion Type | Business | | Recommended Uses For Product | Security | | Size | #9 Envelope-500 Pack | | UPC | 646437176323 646437575997 | | Unit Count | 500 Count | ## Product Details - **Brand:** NextDayLabels - **Closure Type:** Self-Seal - **Color:** White - **Number of Items:** 500 - **Recommended Uses For Product:** Security ## Images ![NextDayLabels #9 Double Window Check Envelopes - 500 Pack Ready-Seal Security Tinted Envelopes for QuickBooks, Sage 100, Blackbaud Checks - Self-Sealing Laser-Compatible - Made in USA - Image 1](https://m.media-amazon.com/images/I/51vuyA57pbL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent product at a third of the price - highly recommend *by J***N on November 14, 2017* We use a proprietary software system for churches (widely used in the US). We were told (of course) that only their envelopes would fit their checks. After buying one box for about $120 after shipping I determined never to do that again. I spent quite a bit of time measuring and comparing different alternatives, and decided to take a shot with these - I figured with "guaranteed to fit" I couldn't lose. I had previously had great luck with different #10 double-window envelopes from Amazon. These are excellent! Well made and they appear to be sturdy enough. The adhesive works very well, I have not had to reinforce it. I was most concerned about the window placement - would they fit properly without a lot of fiddling and re-positioning the print fields? They fit our checks perfectly with no drama. The window placement is about perfect. In fact, better than the "proprietary" models, these don't reveal anything on the memo line, but the addresses are perfectly visible. As others have noted, they are just large enough to also accommodate return correspondence such as a tri-fold letter-size invoice copy. Not so large that the check floats around, obscuring the address. I am very happy with these and I am spreading the word to others! ### ⭐⭐⭐⭐⭐ Perfect fit! *by B***A on January 10, 2026* These envelopes worked perfectly! The perfect fit for my checks ### ⭐⭐⭐⭐ Great alternative *by B***. on January 4, 2024* Great value for the price when compared to what the accounting software company wanted me to use which was more than triple the price. The adhesive releases easily if you forgot to add something to the envelope. My hope is that the adhesive turns more "tough" once the envelopes go to the post office. If anyone knows the answer, please let me know. --- ## 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.dk/products/18011556-nextdaylabels-9-double-window-check-envelopes-500-pack-ready-seal](https://www.desertcart.dk/products/18011556-nextdaylabels-9-double-window-check-envelopes-500-pack-ready-seal) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-26*