Come and see our amazing products. The skinny tumbler is made of stainless steel which won't alter flavors or leach chemicals. Rust and scratch resistant, no worries about shattering. Double walled insulated provides a good ability of insulation, thermal copper lining keeps hot liquids toasty for 1-3 hours while icy drinks cold for 6-9 hours. Can be applied as wine cups, champagne cups, water cup or sports fan travel mugs, suitable for parties, picnics, self-driving travelling, boats, beach, pool, camping and hiking, etc. Qty for 1000 pcs and over by sea. Pls confirm with us about the packing info, stock color and exact production time before placing your order