THICK AND HEAVY DUTY SILICONE - Our extra large ice cube moulds are made of high quality and reliable silicone with stability enhancing wavy edges, high elasticity, thick and durable properties. Reusable, dishwasher safe and hand washable. PERFECT FOR YOUR ICE BATH - Ice cubes last much longer than large ice cube trays, so you can keep your frozen bathtub cooler for longer, soothing and rejuvenating your mind and body! SAVE TIME AND MONEY - No more buying ice cubes! You can make your own large ice cubes at home, the kit includes two silicone ice cube moulds which are an alternative to an ice machine countertop. EASY TO USE - It's very easy to use, just fill the silicone moulds with water, leave some space at the top for expansion and place them in the freezer for 24 hours. Once the ice cubes are completely frozen, remove them from the freezer and let them sit for 5-10 minutes, the ice cubes will pop out easily and you'll have perfectly large ice cubes.