1.you can now create 37 hexagon shaped cubes in one go is soft and bendable for easy removal. 2. Each tray can create 37 ice cubes. The clear lids allow you to stack them on top of each other to save more freezer space and produce cleaner ice cubes.3.Lids are mainly used to stack and protect ice inside the freezer. They are not made for sealing purposes. The lids are particularly important during transport from your sink to the freezer to prevent accidental spillage, placing one tray on top of the other lids makes the product easier to transport.4. One of the great things about these ice cube trays is that you can fill them with you want. This tray is ideal for making DIY treats, fruit jellies, chocolate snacks, confectionery, or baby pure. 5.The flexible material makes releasing the frozen ice from the tray quick and easy on the hands. Gently press the bottom of each slot and the cubes should come right out. No more unnecessary breaking and snapping of ice trays.