General description This set includes two different types of ice cube molds made from food-grade silicone, designed to create ice for cocktails, whiskey, and other cold beverages. These BPA-free trays are reusable and perfect for parties or relaxing at home. Technical specifications Material: Silicone Color: Black Weight: 333g Square ice cube mold dimensions: 115*165*40mm (4.5*6.5*1.5 inches) Round ice cube mold dimensions: 130*180*45mm (5.1*7.1*1.8 inches) Compatibility and accessories 1 square ice cube mold with lid (makes 6 ice cubes) 1 round ice cube mold with lid (makes 6 ice cubes) Installation Before first use, clean the ice cube trays with a cleaning solution. Boil the trays in water for 15 to 30 minutes, then dry them thoroughly.