From cocktails to cola, this hammered-finish highball tumbler will keeps drinks cold up to 12 hours and hot up to 3 hours. The cup holder friendly shape makes it the perfect travel companion.The copper-effect finish is handwash only. Holds up to 22oz and fits most standard cup holders. Slip-free, scratch-free and noise-free silicone base. Includes BPA-free lid with removable slider for cleaning. Triple insulation technology: double-walled, vacuum-sealed and copper-plated.