20 oz. Double Wall Tumbler With Vacuum Sealer.

20 oz. (591 mL) double wall 304 Stainless Steel vacuum tumbler with Copper insulation. Includes plastic slide locking lid. Copper lining ensures your drinks stay hot or cold longer; Keeps liquids hot for up to 5 hours, cold for up to 22 hours. Hand-wash only. Do not place in freezer or microwave. Caution: Item may leak if tipped or held upside-down. **CO2 Laser engraving is not available on Silver color**