1. SLOW-MELTING LARGE ICE CUBE: Ice tray make 8 square ice cubes of 2 inches at a time. The huge ice cubes will cool the drink quickly without diluting them, ensuring the original flavor of the drink. Perfect way to dress up Old Fashioned, Scotch, Bourbon, or Blended Whiskey. 2. DIVIDER BOTTOM AND SILICONE LID: Each ice cube cavity is individually separated. Releasing ice cubes is as simple as pushing the bottom of the ice tray , And it does not affect other ice cavities. Silicone lid snapped on tightly to ensures ice cubes fresh and keeps it from spilling out as you transport it from the sink to your zer. 3. EASY TO USE: Fill the ice tray with water or any other liquids, snap the silicone lid on, place in the zer for 6-8 hours. Silicone ice trays can be pushed from the bottom to remove cubes for an easy release. Easy to clean to reuse, just rinse them off and ready to use again. 4. SAFE & STACKABLE: Made of premium silicone, the ice tray is flexible and durable dishwasher and effective for zing ice cubes, soups or other liquids. Ice trays can be stacked inside each other when they are not in use.