The design is laser engraved making it permanent lasting forever! ♥ 20 oz Stainless Steel Premium Powder Coated Tumbler and Lid. ♥ Engraved Design! ♥ Ice Retention up to 24 hours and Hot up to 6 Hours! ♥ Double-walled vacuum insulation; Keeps Hot and Cold. ♥ Fits almost all cup holders ♥ Clear Shatterproof lid to protect from spills. ♥ Sweat Free Design to keep your table dry. We have personally owned each of the trendy brands & will testify to the quality and performance of these tumblers to be comparable if not superior to the most popular of the bunch! Do NOT place this item in dishwasher, microwave or freezer. Get one for yourself or buy one for a friend that would love this!