R8C Museum Delivery Corvette Tumbler. Available exclusively to R8C Museum Delivery participants, this premium thermal tumbler keeps beverages at the perfect temperature. Double-wall 18/8 stainless steel construction with copper vacuum insulation maintains hot drinks hot and cold drinks cold for hours. Features a durable stainless steel rim and base, snap-fit Tritan threaded lid for secure sealing, and a flexible wide silicone straw for comfortable sipping. Perfect for on-the-go enjoyment of your favorite beverages. 16.9 oz capacity. Hand wash recommended.