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.