Calphalon Commercial Bakeware Collector's Edition Mini Springform Pans, Set of 4 Set includes four 4-by-1-1/2-inch mini springform pans Removable springform ring on each pan is made of heavy-gauge aluminum Flip mechanism on sides easily release dessert without damaging edges Two-tone design ensures baked goods stay moist and do not overbrown Oven-safe to 450 degrees F; lifetime warranty