Rubber ice mould;Extender ice cubes double as handy swizzle sticks. Flexible silicone ice cube tray to easily to catch the ice. Can do different cute design as you need. Enjoy your ice fun! The ice trays are made from high-quality silicone for food. Each tray is oven-safe to 550oF and (-50oF) is cool to the touch within minutes after baking. Stir up some fun and add a cool touch to your favorite beverages. Extender ice cubes double as handy swizzle sticks. Each food-grade silicone rubber tray makes three Ice piece. size about 8" x 4 ?" x 1". Material: silicone ice boxes: colorful Heat Resistant: 250C Freezer Proof: -40C Feature: 100% food-grade silicone( FDA,LFGB certification &SGS)