Material and safety Food grade material. Our ice cube reusable set is made of pure water, food grade PE material and reusable dummy grade ice cubes. You can safely put it in your tumbler to chill your drink. Easy to use With these reusable ice cubes, you can cool drinks in the office, kitchen or living room. Heart-shaped ice cubes can also be used as ice to cool down, relieve heat and give you coolness. Drink compatibility Our heart shaped ice cubes can be applied for cooling cola, whiskey, apple juice, grape juice, orange juice, coffee, pure water and lemonade to meet your diverse needs of ice drinks. Style options Reusable ice cubes: whiskey cooling stones multi-coloured layers, monogram, triple gradient pendant, acrylic ice cubes have a very beautiful appearance and add a bright color to your drink. Practical scenarios Ideal for the office break room, home kitchen, or living room gatherings to chill beverages and add visual appeal.