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Description
93500 Double Window Confidential Self Seal Envelope 4 1/8 x 9 1/2" QTY 10093500 Double Window Confidential Self Seal EnvelopeSize: 4 1 8 x 9 1 2" Make doing business more efficient with Double Window Confidential Self Seal Envelopes. Our industry best confidential envelopes protect privacy & eliminate addressing! Just fold, insert materials & mail. 24# White Self Seal Double window w Gray Security Tint Envelope is size of No. 10 envelope. Double window design clearly shows return and destination addresses. Upper Window: 1 x
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.5 ★★★★★
Based on 2063 reviews
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Product Reviews
★★★★★ 4
Thin but with extra step works great
Size: 8.5"*11", Color: 150 sheets
It sublimated great but it’s thinner than what I normally use so it take an extra step to not have over lapping but it’s cheaper and you get more so definitely worth the price
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Reviewed in the United States on December 3, 2025
★★★★★ 5
Recommend
Size: 4x9.5inch
First, the sizing is absolutely perfect for these projects. Instead of wasting large sheets and having to cut them down, these pre-cut sizes save a ton of time and effort — and most importantly, reduce paper waste.
The quality of A-Sub paper has always been excellent: it holds vibrant colors beautifully, releases ink consistently, and produces crisp, sharp designs. Both of these sizes continue that tradition. I’ve noticed my images transfer smoothly and evenly every time, whether I'm working on ceramic mugs or glass tumblers.
In terms of value, these smaller sheets are definitely worth the price. You get professional-quality results without using more paper than you need, which in the long run saves money and materials.
Overall, I highly recommend these A-Sub sublimation papers for anyone looking to streamline their mug and tumbler production. They’re efficient, reliable, and a great investment for any sublimation business or hobbyist. - send me stuff to review.
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Reviewed in the United States on June 28, 2025
★★★★★ 5
100% recommended, excellent product
Size: 3.5x9inch
Great paper quality. Prints are sharp and vibrant. Works perfectly for sublimation.
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Mug paper
Size: 3.5x9inch
Very good product to work on
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Best Choice for Sublimation Paper
Size: 13x19inch
I'm just a beginner but have been doing sublimation for about a year. Of all the papers I have tried, A-Sub is by far the best for color transfer and ease of use. I also use A-Sub for my photo printing. I am now a firm believer in their products and don't see changing.
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Reviewed in the United States on February 7, 2026
