The TwistLock Beverage Locking System Tumbler is designed to keep your beverage at the perfect temperature whether hot or cold for hours! The double-walled stainless steel construction will withstand the toughest elements, and at 22 oz., the TwistLock Tumbler is just the right size for all your adventures. This premium insulated tumbler is compatible with all TwistLock Cup Holder bases (not included), and can be used alone or with any standard traditional cup holder. Mfrs. 2-year limited warranty. Enjoy your drink at the perfect temperature Keeps liquids hot or cold for hours Double-walled stainless steel construction Fits with all TwistLock Cup Holder bases (not included) Holds up to 22 oz. of liquidView the TwistLock Warranty Information