Thick Silicone MaterialStanley silicone ice cube trays are made of food-grade silicone, BPA-free, flexible and recyclable. Stanley silicone ice cube trays have 3 compartments to improve freezing efficiency and ensure you always have ice cubes for your drinks. Versatile SizeStanley silicone ice cube trays make 3 large ice cubes with hollow cylinders, perfect for cooling drinks in larger containers like 40-ounce pitchers or glasses. Larger size ice cubes ensure that this summer, let's use these large ice molds to cool every drink! Easy to Clean/StoreStanley silicone ice cube trays can be stacked in the freezer to prevent odors and dust and keep the ice cubes fresh. Use by hand or rinse. Air dry them and stack them in a dry place. Easy to UseSimply pour water into the Stanley silicone ice cube tray, cover it with a lid, and put it in the freezer. After a few hours, you can enjoy perfectly shaped hollow cylindrical ice cubes that are easy to take out for convenient and worry-free use. Meet Your Different NeedsWhether it's an outdoor picnic, a family gathering or an office break, the Stanley Cup ice cube tray can meet all your cooling needs. Every bite adds a touch of convenience and fun to your life.