Come and see our amazing products. 30 oz Stainless Steel Tumbler is made of 18/8 stainless steel construction with a powder-coated matte finish. Interior is copper-lined and double-wall insulated. Comes with a clear plastic push-on lid with black sliding drink opening that can keep beverages hot for 4 hours and cold for 12 hours! Tumbler shape is compatible with most car and truck cup holders. Recommended hand wash only. Pls confirm with us about the packing info, stock color and exact production time before placing your order.