Food Grade Silicone - The large silicone ice cube tray is made of BPA-free food grade silicone, which is non-toxic, odorless and durable. You can customize the flavors to your liking by filling the ice cube molds with fruit, ice cream, soda and wine. It is safe for direct contact with food or drink and effectively freezes liquids like juice, soup and even baby food. Removable Lid Not 100% Airtight - To avoid diluting flavors and contamination in the fridge, we use a removable silicone lid. Due to the increase in volume during freezing, covered ice cube trays may burst if the lid is tightly closed. Eco-Friendly & Reduces Waste - These ice cube trays are reusable and washable. By reducing single-use plastic pollution, it helps protect our lands, rivers and marine life. Choosing large silicone ice cube trays over plastic ice cube trays makes sense because they are reusable and easy to clean and dry under the dishwasher. Simple non-stick design - Compared to hard plastic ice cube trays, our flexible ice cube trays are made of durable silicone. These large ice cube molds can be easily twisted or pushed from the bottom to remove ice cubes. Each silicone ice cube tray includes 6 cavities, 3 trays per pack. Flexible non-stick silicone material and independent ice cube compartment design, easier to release large ice cubes. No need to bend or twist, just press the bottom to remove the ice cubes. Large cube dimensions: 2" x 2" x 2"