**A Prime Line® Exclusive!** • 16 oz. 473 mL) double-wall insulated tumbler featuring illuminated logo. • Illuminates logo by pressing button at base of by shaking device. • ABS Plastic exterior, 304 Stainless Steel interior. • Features Polypropylene Plastic twist-on lid. • Uses 2 button cell batteries (CR2032) which come assembled in tumbler, and are replaceable. • Straw not included. • Designed for use with hot and cold beverages • Hand-wash only. • Do not microwave. Do not place in freezer • Caution: Item may leak if tipped or held upside-down. • US Patent: 10,874,232 B2