Widely Application Professional production of sublimation shrink wrap, which can be full-frame thermal transfer of different sizes and shapes with handles / handle-free ceramics / metal cups, and various bottles, ashtrays, basins, bowls, pots, tubes, tags, refrigerators. Features ⭐2 sizes: 5 x 10 inch (for 20oz Tumblers) 7 x 11.4 inch (for 30oz Tumblers) ⭐Sufficient quantity: 40 pieces ⭐Safe and odorless Package includes 40 x Sublimation shrink wrap film (20pcs 5 x 10 inch) (20pcs 7 x 11.4 inch) How to use them: 1. Fix: Fix the printed transfer paper with high-temperature tape. 2. Slip: Slip your product with attached printed transfer paper into an appropriate size sublimation cover. 3. Shrink: Heat with the heat tunnel to shrink the sublimation shrink wrap sleeves to conform to the product's shape. 4. Set: Put them in the oven, set the temperature-time (170℃/338°F, 5 minutes), of course, you can also adjust the time and temperature according to the quantity and size of your items. 5. Finish: Be careful of the high temperature, remove the shrink and paper from the product and enjoy your DIY craft. Notes 1. The adhesive tape used to fix the transfer paper must be a high temperature resistant tape, not ordinary plastic or paper tape. 2. Hot air tunnel will make the sublimation bag and transfer paper firm and smooth on the surface of the bottle surface, there may be small bubbles on the surface of heat shrink film without using hot air tunnel.