Surpriseyour friends, party guests, kids and more when you chill their drinks with shark fin shaped ice cubes! These food-grade silicone ice trays - ice molds will keep everyone laughing! These flexible silicone ice cube trays are perfect for making party-themed ice cubes, chocolates, gelatin, and more. The ice cubes come out intact - not chipped or cracked, simply push each cube from the bottom with your finger. For the fastest and best results, wait a few minutes after taking the tray out of the freezer. Each tray is 5.3" x 3.1" and they are sold in sets of 2 trays. Wash each tray in hot water prior to first use.