VARIED SIZES: Our silicone ice cube trays make four large hollow cylindrical ice cubes, perfect for chilling drinks in large containers like pitchers or 20-30-40 oz glasses. The larger size ensures a slower melting rate, helping to keep drinks warm without diluting. THICK SILICONE MATERIAL: Made of durable and safe silicone material, our ice cube molds are food-grade, odorless, BPA-free, and leak-free, allowing you to freeze with confidence. EASY TO FILL & RELEASE: Simply pour water into the tray, cover with lid, place in freezer, and twist to release perfect ice cubes. Designed to fit 20-30-40 oz glasses, multiple ice cube sizes available. EASY TO CLEAN/STORE: Ice cube trays with removable lids can be stacked in the freezer to keep out odors and dust, preserving the freshness of ice cubes. Rinse by hand or in the dishwasher. Stack in a dry place after air drying. Perfect for chilling whiskey,cocktails, juice, tea, or coffee. Chill Your Drinks in Style: Enjoy perfectly chilled drinks every time with our ice cubes that won't melt quickly. Perfect for family gatherings, home bars, restaurants, beach days, holiday events, or even as gifts. These ice cubes will keep your drinksrefreshingly cold. So sit back, relax, and enjoy your perfectly chilled drink.