Come and Check Our Promo Solutions.This tumber is made of stainless steel & PS. The tumbler can be fully imprinted with any images. When you pour in a hot beverage, the color of the mug will change. Fit for enjoying drinks at home, on the beach, by the lake, at the pool, in the office, at the party, during RV tours, cabin trip, camping, hiking, picnic and so on. Pls check inventory and detailed info with us before placing your orders.