Easy to Release - The bottom ice ball parts is made from silicone, it help you easily -out the ice balls without efforts. Stackable & Removable Lid - With a removable grooved lid, you can stack the ice ball maker mould easily and neatly in the freeze. Ice Football Design - Compared to the regular ice-cubes and balls, provide a ice football look, one time 6 ice footballs, the 4.5cm ice footballs looks really in your drinks. Safe Materials - whiskey ice ball maker is made from food grade pp and silicone, safe to use in freezer and dishwahser. Perfect for all Drinks - perfect for whisky, cocktail, and almost all drinks. Be , add some fruit or mint in it, share with your family and friends.