Features: 1. Functional Design: Most mug thermal sublimation machines have a non-adjustable heater. But what if you want to print more glasses and mugs? Now our sublimation silicone pack can help you! Suitable for smaller sublimation blanks mug heat press sublimation machines to create different sized glasses and mugs. 2. Wide Compatibility: Our sublimation silicone wraps are available in three thicknesses for sublimating different sizes of glasses, straw cups, water bottles, can coolers and more. They can wrap thinner glasses or cups for added thickness and evenly transfer heat to bring out vivid coloured prints. 3. Easy to Use: Silicone sleeves are easy to use. Use one or two pieces of silicone of the right thickness to wrap around a blank glass or mug, then insert it into the mug to press the hot plate and tighten it. 4. Durable Material: Our sublimation silicone sleeves are designed for use with mug heat sublimation machines. Made of quality silicone. Wear resistant and heat resistant up to 430℉ (200℃). 5. After-sales service: If you have any problem, please contact us immediately, we will help you solve it as soon as possible. Specifications: Size: 3mm, 4mm,1.5mm Material: Silicone Notes: Please note that due to the influence of light and screen, slight chromatic aberration is acceptable. Please allow slight measurement error due to manual measurement. Include: 1 * Set of Silicone Plate Cover