This silicon ice cube mould tray is made with high-quality food-grade silicon material. Just fill the water and close it with the lid. You can take out the ice just with a simple push as it used soft silicone. It can be stuck up in the freezer to save space. And it is easy to wash and can be used in the dishwasher. It comes with a hard silicone lid, and clips to the soft silicone. Make it a bit more sturdy for transferring the trays filled.