Vacuum insulation: With double walled vacuum insulation, the stainless steel sublimation skinny tumbler bulk can keep your beverages hot for 5 hours and keep cold for 12 hours.How to use:If you choose heat press machine to sublimate your tumblers,Recommended time is 50 seconds,Recommended Temperature is 334 Degree Fahrenheit,If you choose oven to sublimate your tumbler,Recommend time is 6 minutes,Recommended temperature is 300 Degree Fahrenheit.STRAIGHT BODY:The skinny stainless steel bulk for sublimation is completely straight, not tapered. and tumbler with sublimation coating, You can easily make a full wrap around the tumbler and make a perfect sublimation.Safe and Durable: our sublimation tumbler is made of stainless steel,this sublimation slim travel tumbler set with lid and straw is highly durable and resistant to break and rust.DIY Picture as You Want our tumbler is ready with a polymer coating for Dye sublimation prints using heat press or convection oven.you can DIY Unique tumbler for your family member or your friends you really careColour:WhiteMaterial:Stainless steelPackage Contents:4 * sublimation cups4 * Stainless Steel Straws4 * sublimation shrink wrap film4 * lids4 * Straw BrushesOnly 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.