BAKE BOSS is the ONLY AUTHORIZED SELLER of this 12 cup silicone muffin pan with metal reinforcement in handle (and around the pan). Don't fall for the cheaper low quality knockoffs. Say good bye to your old metal bakeware and floppy silicone pans. ✔ DIMENSIONS - PAN SIZE : 37.5*22.7*3.5 cm; CUP DIAMETER : 6cm (top), 4cm (bottom); Each cup holds 2 oz.✔ SPILL PROOF & EASY TO CARRY - Our patented design of embedded metal reinforcement around the pan makes it easy to put the batter filled pan in oven and take out the baked muffins pan without any spills.✔ SAFE FOR YOUR KIDS & FAMILY - Our pans have no harmful chemical fillers and additives since we have used 100% BPA free and high quality LFGB food grade silicone surpassing US FDA standard silicon. Throw away those plastic pans that fail the "pinch test". Remember, if you twist the silicone and it turns white, it is NOT silicone.✔ NON STICK AND EASY CLEANING - Baked goods pop out easily leaving no cake crumbs on our nonstick pans. This makes cleaning our stain resistant muffin tins easier and quicker. No more scrubbing. Also, it is completely dishwasher safe.✔ NO NEED TO USE BAKING SHEET - Baking sheet is a must for all other flimsy silicone pans but our sturdy pans can do without them. Avoiding baking sheet beneath the tart pan ensures "even" flow of heat on all surfaces of the pan giving you those perfect delicate and delicious cupcakes.✔ HEAT AND COLD RESISTANT - Our pans are temperature safe from -40°C to 230°C (-40°F to 446°F). They are Oven, Microwave, Freezer and Dishwasher safe.✔ WHAT ELSE CAN I BAKE? - Cupcakes, quiches, frittata, omelette muffins, crab cakes, polenta, mini cakes, mac & cheese cakes, mini desserts, pies, mini taco bowl, poached egg, brie cups, terrines, pizza bites, mini lasagna cups, chicken pot pie cups, monkey bread, s'mores, baked oatmeal cups and soaps.