1.Ice removal method: After removing the ice tray from the refrigerator, let the product stand for 2-3 minutes, and then push it out from the top of the tray to immediately distinguish it. 2.Food Grade Silicone - Silicone big ice cube trays are made of food grade silicone which is BPA , odorless, and durable. You can fill the ice cube mold with fruits, ice cream, soda and wine to customize your favorite flavor. It's to touch food or directly, and effective in zing liquids like fruit juice, soup, and even food. 3.Removable Lids & No Sealed - To avoid diluting the flavor and being contaminated in the refrigerator, we use removable silicone lids. For the reason that the volume will increase during the zing process, and ice trays with covers might cause burst if the lids are sealed tight. 4.Simple Non-stick Design–Compared to the stiff plastic ice trays, our flexible ice trays are made of durable silicone. These large ice cube molds can be easily twisted or pushed from the bottom to remove ice cubes.