Laser engraved quality tumblers * Laser Engraved, NO vinyl is used, meaning the engraving is permanent and will never come off. * Each cup is custom made to order * Design is permanently engraved into the tumbler. It will not fade or wash away. * Tumblers are made of 18/8 food grade stainless steel * Double wall vacuum insulated construction can be used for both hot & cold liquids