Material - These Double Vacuum Coffee Cup Is Made Of Stainless Steel, Rust Proof, Easy To Clean, Not Easy To Break. | | Tumbler Set - You Will Receive 16 Pieces Stainless Steel Tumblers In Black Colors, 16 Stainless Steel Straws, 16 Straw Brush, 16 Lids, 16 Pack Individual Boxed. | | Size - The Cup Body Height Is Approx. 8.1 Inches, Diameter Is About 2.9 Inches, Suitable For Most Car Cup Holders. | | Gifts - The Stainless Steel Tumblers Is Blank, Nice For Diy, Birthday Gift, Wedding Gift, Bridal Shower Gift, Christmas Gift, Housewarming Gift, Thank You Gift For Friends Family. | | Double Wall Design - Our Stainless Steel Insulated Tumblers Are Design With Double Layer Vacuum Insulation, Which Keeps Your Drinks Hot Up To 6 Hours Or Cold Up To 12 Hours. | |