✔ This is Real food class stainless steel material, CE approved. Stainless steel is durable and makes for quick freezing of cubes, and it's a more environmentally and home-healthy choice than plastic trays ✔ Made from 18/8 stainless steel, ✔ this fast freeze put in the freezer, and in a few hours, you can enjoy mold is easy to use, ✔ easy to clean, ✔ and will last you a life time ✔ Simply hold the mold in your hand for a moment, or run under warm water briefly. (Not too long, it will release very quickly.) ✔ Please check if it can fit in your freezer and popsicle machine. Dishwasher Safe