Designed with wall ladder, pull-up bar, rope ladder, rope and gymnastic rings, kids will find their own fun on this indoor wall gym. The frame of the stall bars set is made of powder coated carbon steel pipes that is heavy-duty and rust resistance for long time use. And the surface is easy to clean with a damp cloth. The connectors and accessories are made of galvanized carbon steel for better rust resistance. The assembly is easy with the instructions. And the whole kids stall bars set are firmly fixed to the wall by 8 expansion screws which are included in the package. Note: It needs to be installed on a masonry/brick wall, Not on a sheetrock wall.