Seamless Design - 20oz seamless silicone sleeve has no seam , providing for your sublimation tumblers, so that you can install the perfectly without wrapping the tumbler with silicone bands. Heat-resistant Sleeve - silicone sleeve is made of high-quality heat-resistant silicone. The maximum temperature resistance is 482/250, which makes the sublimation printing of the whole package easier, so you never have to worry that it will or stick to your tumbler and ruin your project.If you are beginner, tumblers pursues perfect effect, this set is for you. Advantages - Reusable and Safe. It can be safely used directly in the oven. Therefore, you can adjust the appropriate temperature and time for your sublimation project. It can be applied and removed quickly and easily without shrink wrap and heat . Easy to Use - Glue the seam, top and bottom with the complimentary heat tape, then turn the silicone cover over and roll it up from the bottom of the cup. The silicone cover can be tightly wrapped and appropriate pressure to avoid the problem of color or fading and blurring at the bottom and top of the cup. Include - 3 pieces of 20 silicone sublimation wrap(Green), 3 pcs 30M heat tape for sublimation. (Tumbler Not Included) colour: green Material: Silicone Package Contents: 1 set x sublimation blanks Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.