Stainless Steel Double Walled Tumbler embellished with Crystals Each BUBBLE & BLING double walled stainless steel Travel tumbler is for hot or cold beverages comes with certified “food proof lid” with slider vent for straw ! Holds 20 oz and keeps your beverages cold or hot for hours ! Fits most car holders Must be hand washed and do not microwave Important Warning: Leave vent open til hot liquid cools down before closing . Liquid stays hot for hours so be careful of spilling while carrying.