All designs on glasses are with Epoxy Resin. All pigments are with mica powders(used in all makeups and also food & drink safe) These glasses would make a perfect housewarming gift, Christmas gift, wedding gift, birthday gift, or anniversary gift! 100% Perfect for Wine Lovers. Glass Care * HANDLE WITH CARE * WASH BY HAND * DO NOT SOAK * AVOID EXTREME HEAT * DO NOT PLACE IN DISHWASHER OR MICROWAVE * DO NOT USE WITH TEALIGHT CANDLES