The wine tumbler is made of good quality 18/10 stainless steel, BPA Free, Lead Free, durable and unbreakable. Covered by tough and durable coating, the tumbler surface is no scratch, the tumbler can be dishwashered safely and won’t alter flavors or leach chemicals. but to protect the coating, hand-wash recommended.
Cold for 7 hours and hot for over 5 hours.
Comes with 8 tumbler, 8 Lids, 8 stainless straws and 8 cleaning brushes.