TeamFar Round Baking Steaming Roasting Rack Set of 3, are made of pure stainless steel, no aluminum and toxic chemical substance into your food. MULTIFUNCTIONAL: 3 size, 7½’’ & 9’’ & 10½’’, Perfectly BAKING bread, pizza in oven, STEAMING veggies in pressure cooker, COOLING cookies, cupcakes, CANNING stuff in pots, etc.