Come and see our amazing products. This stainless steel insulated tumbler is made of food-grade 18/8 stainless steel.No harm to human health, and without metallic taste. The interior is electro-polished. It comes with a leakproof lid which both do not contain BPA. It has a vacuum double wall design which ensures good insulation. No matter which season you are in, you can enjoy your favorite hot and cold drinks for a long time. Keep cold drinks cold for up to 24 hours and hot drinks hot for 6 hours.The size of the bottom of the cup is convenient for you to hold firmly. The tumbler can be safely placed in most car cup holders.Suitable for swimming, Sports, Travel, Road trip, Barbecue, Camping, parties, etc. You can share them as gifts on birthdays, Thanksgiving, and Christmas with your family, friends, teachers, colleague. Pls confirm with us about the packing info, stock color and exact production time before placing your order.