Skip the rounded ice and impress with the Perfect Cube Ice Tray With Lid from Tovolo. Serve refreshments with perfect cubes of ice in your drinks. Cubes pop out of the silicone mold easily, and the secure lid seals out freezer smell for fresh-tasting cooling power. Rinse silicone ice trays occasionally with water and vinegar for best results. Made of Bpa-free silicone and nylon.