The Ice Cube Tray for 40 Oz Tumbler is a set of 3 silicone hollow cylinder molds designed specifically for creating ice cubes in the shape of round cylinders. This green tray is dishwasher safe top rack and washable, making it easy to use and clean. The tray is made of silicone material, ensuring that the ice cubes come out easily and are of high quality. Perfect for personalizing your cocktails or adding a touch of elegance to your drinkware, this ice cube tray is a must-have for any home bar or kitchen.