Fresh flavor preservation: The tightfitting removable lid protects ice cubes from fridge odors and contaminants, helping prevent dilution and keeping drinks tasting pure when the ice is stored or used. Longer cooling effect: The hollow cylinder design creates larger ice cubes with reduced contact area, slowing melt and extending the cooling performance of beverages. Designed for 2040 oz tumblers: This silicone icecube tray with a lid is tailored for 2040 oz tumblers and produces 13 hollow cylinder ice cubes per mold, allowing you to tailor ice size to glass and preference. and safe: Made from silicone, the tray is odorless, nontoxic, and reusable. It is flexible and releases ice cubes easily without cracking or breaking, and it is dishwasher safe for simple cleaning. Use scenarios Everyday beverages: Chill coffee, iced tea, water, or juice in a 2040 oz tumbler. Use 13 hollow cylinder ice cubes per drink to achieve slow melting without quick dilution. Entertaining or on the go: Prepare large ice cubes in advance for parties or travel mugs, helping drinks stay cold longer without frequent refills. Mixed drinks and cocktails: Ideal for largeformat drinks in tumblers; the hollow design maintains chill while minimizing dilution for a more balanced flavor.