The Maximum Muscle Trainer is the ultimate pull up bar designed for the serious body builder/athlete. Mount on solid wall or wood beam for permanent safety! Work out readily anytime...no need to mount on a doorway each time you work out. The Maximum Muscle Trainer enables you to do various pull up grip positions (wide grip, reverse grip, close grip, and hammer grip) that work on your compound muscles for fast, maximum results! Develop your back, chest, shoulders, lats, biceps, triceps, and forearms using your body"s weight resistance. Achieve those six-pack abs by doing a variety of hanging crunchers that effectively target different areas of your abdomen, including your lower core! The heavy duty Maximum Muscle Trainer is built professionaly of hi-grade steel, non-slip powder coating and comfort grips. It is easy to assemble and ready to use. It holds up to 400 lbs of weight! Mount on a solid/thick wall or wood beam for safety and maximum performance. (Not recommended for mounting on a thin wall.)