Star Trek Starfleet Silicone Ice Cube Tray Make 8 command insignia Starfleet ice cubes with the Star Trek Classic Starfleet Silicone Ice Cube Tray! You can use this handy tray to make candy, chocolate, ice, Jell-O shots, and more. Get creative and boldly go! Dishwasher safe. Each Measures about 8-inches long x 5-inches wide.