HEALTHY AND SAFE MATERIALS: Made from flexible,BPA-free food-grade silicone,Non-toxi, .Can be used in refrigerators,microwaves and dishwashers.Safe and effective for frozen liquids such as juices,soups and even baby food.The mold is equipped with a silicone plug,one-piece design to prevent loss.LARGE SIZE HOCKEY PUCK MOLDS: 4-ball silicone ice marker mold create four 2.16 inch large ice balls.Ice hockey melts slowly and evenly,allowing the drink to stay colder for longer and dilute less.It's ideal for your Old Fashioned,Scotch,Bourbon or Blended Whiskey.EASY TO USE AND CLEAN: Just pour water from a small mouth and fill up 3 and a half balls(Do not fill four balls to avoid damage to the mold.Tip:Thermal expansion and contraction).Then cover with a silicone stopper and take the whole mold into the refrigerator to freeze.About 6-7 hours later,you will get 4 large DIY ice balls.The smooth and non-Stick PP surface is easy to clean.MULTIFUNCTION ICE TRAYS: The ice sphere mold is not limited to make ice,but also ideal for making all kinds of DIY ice food like ice cream, pudding, jelly and freezing fruit,juice,whisky,cocktail,yogurt,coffee,baby food and more.Ice molds is the best choice for Home,Party and Bar ,etc.