NEW LIDS DESIGN---Sealed lids design which makes it easy to cover ice tray tightly, and perfect tightness of lid, prevent overflowing and keep away from odors in the refrigerator. Stackable and removable lids---Rubber ice cube tray with lids can be easily stacked in the freezer to save space.It also prevents ice from absorbing air from other foods in the refrigerator. FOOD GRADE SAFETY MATERIAL---Made of food silicone, safe, sanitary and quality-assured. This silicone ice tray is suitable for use in the temperature range of -40F to 400F.VALUE PACK & PERFECT SIZE---This set have 37 cubes. Tray size: 20.5*12.5*2cm. EASY TO RELEASE & CLEAN: Take the ice tray out of refrigerator and wait a few minutes, then the ice cubes can be released easily. They can be cleaned in the dishwasher. ENJOY THE FUN OF DIY---Perfect for making ice cubes or filling the molds with drinks, fruit, yogurt, jelly, and chocolate to customize your favorite flavor.