FOOD-GRADE SAFETY MATERIAL -- Ice cube trays with lids is made of Silicone and high quality PP material which are certified by LFGB and BPA free. Safe, Durable and Reusable. .NICE-SIZED -- 4 pack ice cube trays silicone with lid, 14 ice cubes per tray for a total of 56( the capacity of each cube is 27ml). Great for home use, Baby food, parties, festivals, and bars etc. .SUPER EASY TO REMOVE ICE CUBES -- The bottom on the flexible ice cubes tray are silicone. Each cube compartment is separate from others. so the cubes are very quikly to pop off. No need for hard bending or twisting. .NON-SPILL STACKABLE REMOVABLE LID -- As for good sealing of lid, it not only prevents liquid overflow before freezing, but prevents peculiar smells between foods. The small ice cube trays stack neatly in the freezer. Save space. .EASY TO USE DISHWASHER SAFE -- Fill the ice cube tray with lid with water(Dont exceed the MAX line), cover the lid on, then put in refrigerator. After using, It can be rinsed in the faucet or wash in the dishwasher. .