The packaging and shipping supplies category just got better with these amazing industrial and scientific sublimation transfer sleeves for tumblers. After I put it to the test, I can confidently say that they are incredibly durable, easy to use, and do not wrinkle or scratch the printed image on my products. Additionally, they come in a variety of sizes to fit different tumblers .The ONLY downside is that they are a bit pricey. Overall, I highly recommend these sleeves for anyone in need of a grSee full review