UNIQUE GIFT - Each tumbler for sublimation is individually gift boxed and contains 12 spill-proof lids, 12 stainless steel straws, 12 straw brushes, 12 non-slip silicone bases, 14 sheets of sublimation paper and 14 sheets of sublimation shrink wrap. We have also added a silicone base to prevent it from sliding on slippery surfaces and to reduce noise. It is an ideal craft product and a great gift option for holidays, anniversaries and birthdays. | PREMIUM SUBLIMATION COATING - Hiipoo sublimation tumblers 20oz skinny are crafted with food-grade 18/8 stainless steel and evenly coated with a polymer sublimation coating for the smoothest application and vibrant, full-color printing. The perfect blank canvas for your unique and personalized designs. | VACUUM INSULATED TUMBLER - Insulated tumbler has vacuum double wall design which ensures a good insulation. No matter which season you are in, you can enjoy your favorite hot and cold drinks for a long time. Keeping hot drinks hot for up to 12 hours and cold drinks cold for up to 12 hours. | COMPLETELY STRAIGHT BODY DESIGN - Hiipoo sublimation skinny tumblers are entirely straight instead of tapered, making it easy to wrap your tumbler with a full wrap, ensuring a simple and seamless package that reduces sublimation work failures, even with large patterns. | SUBLIMATION NOTES - [1] sublimation tumblers can be heated in a convection oven or heat press. For the best results it is recommended to use it together with heat shrink wrap. [2] Be sure to cover the entire tumblers with sublimation paper to avoid uneven heating. [3] Heating time: Heat the heat press (or oven) to 180-356°F, and press for 50-100 seconds (oven wait 6 minutes).