White silicone mold resistant to cold down to -76F -60C and to heat up to 446F 230C. The larger outer savarin silicone mold and smaller inner savarin silicone mold are each sold as separate items but meant to work as a set, the larger overlapping the smaller by being greater in diameter and height and having a smaller hole less empty space meaning more ice cream / cake. That allows you to freeze the smaller savarin volume 18 oz / 532ml, then place it into the unfrozen batter or cream of the larger savarin volume 33.2 oz / 981ml, then freeze the two together for a single savarin dessert with a shell and a core. If you used cream, you now have an ice cream dessert and are done. In the case of batter, only 1 more step awaits--placing the frozen double-layer savarin, in the larger savarin mold, into the oven to bake a 2-layer savarin cake. Smaller savarin diameter 6-1/4 inch 160mm, larger savarin diameter 7-1/16 inch 180mm. Smaller savarin has a larger hole of 3-1/8 inch 80mm, larger savarin has a smaller hole of 2-3/8 inch 60mm. Height of smaller savarin 1-9/16 inch 40mm, height of larger savarin 2 inch 50mm.