New Pattern Skull Material Silica Gel Ice Tray is great For entertaining or everyday use FUN ICE MOLDS TRAY: 4 four giant iced skulls. These iced skulls are realistic-looking, slowly melting and fun to make. These are Great for House Parties, Bars, Restaurants, Beaches, Holiday Events and Holiday Gifts. FLEXIBLE HIGH GRADE SILICONE: Food grade, Leak-free, Microwave safe, Oven safe, Dishwasher safe silicone ice cube tray with lid. This durable and flexible silicone ice tray won't crack or break like plastic ice tray, soft silicone that make it easy to eject perfect skull cubes with nice details and allows the ice mold to pop out quickly and easily. MULTIFUNCTION: Flexible silicone mold, not only use for making ice cubes, you may use it as chocolate, candy, soap or resin molds.