8×12 Inch Sublimation Shrink Wrap Sleeves, 100 Pcs White Heat Shrink Film Bags for Tumblers, Mugs, Cups, Water Bottles, Phone Cases and Sublimation Blanks

These 8×12 inch white sublimation shrink wrap sleeves are designed for heat transfer printing of various sublimation blanks. Each package includes 60 pieces, enough to meet your long-term DIY needs.Made of premium heat-resistant material, our shrink sleeves perform stably under 320°F (160°C) heating, no deformation or damage, compatible with both heat gun and oven operation. They can tightly wrap the sublimation paper and the blank, ensuring the pattern is transferred evenly and clearly without ghosting or smudging.Easy to use even for beginners: fix the transfer paper with heat-resistant tape, insert the blank into the sleeve, heat for a few minutes, then you can get a perfect full-wrap printed craft. Widely used for tumblers, mugs, water bottles, phone cases, keychains, puzzles, mouse pads and more, perfect for personalized handmade projects and unique gift creation.Warm Tips: Do not place the heat gun too close to avoid piercing the film; use heat-resistant tape instead of ordinary tape; do not put the lid into the oven; the temperature and time can be adjusted slightly according to different ovens.

• 【Ample Quantity & Perfect Size】You will receive 60 pieces of 8×12 inch white sublimation shrink wrap sleeves, sufficient for daily use and replacement. The standard size fits most tumblers, mugs, cups and other sublimation blanks, enabling full-wrap printing easily.
• 【Premium Heat-Resistant Material】Made of high-quality shrink film, safe, odorless and durable. It can withstand high temperature up to 320°F (160°C), no melting or breaking during heating, ensuring stable performance for oven and heat gun use.
• 【Easy to Use & Operate】Just fix the sublimation paper with heat-resistant tape, put the blank into the shrink sleeve, heat with a heat gun or oven (320°F/4 mins), the film will shrink tightly and fit perfectly, achieving clear and consistent transfer effect.
• 【Excellent Transfer Performance】The shrink sleeves closely fit the substrate’s shape, press the transfer paper firmly to avoid shifting or blurring, delivering sharp, full-color and long-lasting patterns on your DIY crafts.
• 【Wide Application】Suitable for various flat and curved items, including tumblers, mugs, water bottles, phone cases, keychains, puzzles, mouse pads and tags, ideal for personalized DIY and handmade gift making.