Product description Product material: food grade silicone +PP Product specifications: bottom diameter 7.8cmX width 11cmX height 8.0cm. Ice making specifications: can make ice balls with a diameter of 6cm Packaging includes: 2* round silicone ice hockey mold 1.CHILL ALL DRINKS: The perfect for your favorite low- or highball glasses. Chill drinks quickly without melting for a long-lasting, refreshing drink. 2.KEEP DRINKS COLD LONGER: Avoid watery drinks by using these large, slow-melting cubes to chill your drink. Large cubes melt slowly to prevent diluting drinks, and ice may last long enough to pour another beverage over it. 3.TIGHT-FITTING LID: Tight-fitting lid seals out odors and allows stacking. Lid creates a seal by fitting into the lip of silicone, and the stable base fits perfectly on top of another trays lid, so you can stack multiple silicone ice trays. 4.CREATE SOPHISTICATED COCKTAILS: Create spherical ice for a distinctive, unique look for your favorite cocktails. Also great for iced tea, cold brew coffee, soda, lemonade, punch, and more. 5.ENJOY WITHOUT WORRY: The food grade silicone leak proof design, and water fill line make this ice tray easy to use for anyone. The durable, food-grade molds are BPA-free and dishwasher-safe for the best possible user experience.