Description Contoured tumblers provide the undeniable convenience of fitting in cup holders in cars, trucks and boats across the country. This tumbler features a generous 20 oz. capacity with a slide action lid and copper plating liner. The powder coating finish available in 6 colors is sure to match your color theme! Clear Lid with Sliding Closure, Fits Most Car Cup Holders, Keeps Drinks Hot for 10 Hours and Cold for 18 Hours,