Tailored for Tumblers: Engineered to fit 20oz-40oz tumblers, our large ice cube molds create three premium, slow-melting ice cylinders that keep your drinks chilled without dilution, ensuring a perfectly cold sip every time.Innovative Cylinder Design: Enjoy your beverages cooler for longer! Our unique hollow cylinder ice shape melts at a slower pace, reducing dilution. Ideal for tumbler cup, it adds a sophisticated touch to any drink.Superior Food-Grade Silicone: Crafted with your health and convenience in mind, our ice cube maker is made from BPA-free, food-grade silicone that's flexible, reliable, and environmentally friendly. Elevate your drink experience with safe, quality ice.Effortless Release & Cleanup: Say goodbye to struggling with traditional ice trays. Our flexible silicone design ensures a quick and easy demolding process, while the tray's resilience means it's simple to clean and perfect for daily use.Secure Lid Feature: Keep your ice pure and your freezer clean with our innovative sealing lid that locks in freshness and prevents spills and freezer odors. Enjoy pristine ice cubes every time, enhancing the flavor integrity of your favorite beverages.