SET OF 4: Ice ball moulds come in a set of 4, stackable to save you storage space, mix 4 colours to suit your needs too. TIGHT SEALING: The unique ice cube moulds ensure leak-proof freezing and create flawless ice balls every time. Simply pour water into the mould, freeze and enjoy. SLOW MELTING: Our moulds create slow melting ice cubes suitable for chilling and garnishing whisky, water, iced tea and other beverages to create the best chilled drinks. The uniform ice balls melt slowly and evenly, keeping drinks colder longer and reducing dilution. SAFE MATERIAL: Our ice ball moulds are made of food grade silicone and plastic, very strong, you can use them with confidence. EASY TO CLEAN: Our ice ball moulds are very easy to open and can be washed by hand or in the dishwasher. Ice Molds Set 4 Pack, 2in Plastics Round Ice Cube Mold, Ice Ball Maker Mold, Stackable Puck Maker, Easy Release, Mixing Colours