Product Details Gradient Tumbler - Red/Black, 12 fl oz Perfect for the holiday rush and your daily commute alike, this 12-fl oz plastic coffee tumbler with the shiny red-and-black gradient insert is sure to help keep your spirits high. The tapered bottom fits most cup holders, and the flip-top locking lid helps guard against spills, so you're ready to meet the holidays and every day with your coffee safe in hand. Dishwasher safe. Do not microwave.