The JFIT. Slim Power Rack Pro has a 3 weight machines in a single unit. this Slim Power Rack Pro can give you a full body workout with the Smith machine and a pulley system. A good features about this power rack it has safety Olympic bar catcher and smooth adjustable Smith bar shaft to keep you inline. You can perform lat pulldown and pullover to work on your back because of the Power rack pulley system and also bicep cable curls.