The Tablecraft BSRT2 Cash & Carry Sphere Ice Tray is made of high-quality silicone. This mold is flexible to easily remove ice after freezing. The included lid is great for transporting liquids before they are frozen without spilling and allows for stacking in the freezer. Mold is also oven safe and can be used for baking cake pops, cookie shots and more! Makes (4) 1-3/4 inch spheres and item dimensions are 5.125 inches by 5.125 inches by 2.625 inches.