Made of high carbon steel, not easy to rust, come in a set of 4-inch, 7-inch and 9-inch. With a spring latch on the side, it is easy to open and close the detachable pan collar. Hand wash with light soap for best non stick maintenance, do not use any sharp object on it to prevent damaging the coating. Note: This product includes only the cake pans set, without any other products. Due to different lighting and screen settings, the color of the item may differ slightly from the picture. Due to manual measurement, please allow slight difference in dimension. What's in the box? 1 x 4 Inch Cake Pan 1 x 7 Inch Cake Pan 1 x 9 Inch Cake Pan