[PERFECT TOOL FOR SUBLIMATION]Design for 20oz skinny tumble is about 8.66 x 8.26in which can perfectly wrap and fix the straight tumblers with the picture during the sublimation process to prevent the misalignment and deformation of the pattern, make the sublimation images heat transferred more smoothly and evenly[EASY AND FASTER]You just need to put the sublimation ribbons on the empty mug with sublimation pattern paper, take it to the oven or mug press machine and set the appropriate temperature, then wear gloves to take out the mug directly. Don't worry about scalding your hand, you don't have to wait for the mug mass to cool, you can get a beautiful mug immediately. Even beginners or children can quickly and safely make a great mug within 10 minutes according to our installation guide[MORE REASONABLE AND EXCELLENT DESIGN]Seamless silicon design will not leave blank space and vague part into the tumbler.Meanwhile you no longer need one-time shrink paper and heat guns.Save your money,a more economical option[REUSABLE]This sublimation silicone sleeve has a maximum heat resistance of 482Fahrenheit/250Celsius. The silicone sleeve can be reused at more than 30 times so it's eco-friendly.[VARIOUS ACCESSORIES]Package includes 1 pc silicone bands for 20 oz tumbler, 2 pcs transfer tapes, 1 pair heat resistant gloves and insulated coaster .These tool is essential in sublimationColour:greenMaterial:Silica gelPackage Contents:1 set x sublimation ovenOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.