40 Oz Tumbler Insulated, Stainless Steel Spill Proof With Handle, Straw, and Lid

This 40-oz insulated tumbler has a stainless steel construction with a spill-proof lid and handle, designed for keeping beverages at the perfect temperature for up to 12 hours hot or 24 hours cold.

• The description claims that the tumbler keeps drinks hot for up to 12 hours and cold for up to 24 hours.
• The description claims that the tumbler is spill-proof.