The Springform Pan Made of Carbon Steel and Nonstick,good for Sheet,Baking and so on.;The soft, rubberized grip on the spring form collar allows easy assembly and efficient food release afterward;Hand washing recommended;Nonstick coating and removable bottoms enable easy food release,Oven safe to 450 degrees Fahrenheit;The square baking pan sizes is 9 Inches x 9 Inches x 3 Inches,weight is 634g.the rectangle cake pan sizes is 14 x 9.3 x 3 inches ,weight 845g