The Body-Solid ProClub Line SPR500BACK Extended Commercial Half Rack is specifically designed to excel in heavy-use facilities, such as high schools, colleges, universities, police and fire departments, military facilities, sports performance training facilities, and any commercial gym or training studio.This robust half rack is the same as the SPR500 base model but comes with a rear extension featuring Olympic plate storage with four weight horns (SPRWPH). The rear extension offers ample space for optional add-ons like the storage tray (SPRST), U-links (SPRUL), and more, making it a versatile and customizable station. When combined with the pin and pipe safeties (SPRPS), it becomes an excellent setup for exercises like rack pulls.Constructed with a 3 x 3 11-gauge steel mainframe, the SPR500BACK ensures stability and safety even during the most intense training sessions. It is equipped with premium j-cup liftoffs, safety spotter arms, and an integrated chinning bar for pull-ups, chin-ups, and upper body development. The spotter arms have hole spacing every 1, ensuring users can always find the perfect position without compromising safety.For heavy-use and group fitness facilities seeking expandability, the SPRACB Power Rack Connecting Bar allows them to connect two or more SPR500 Half Racks or one each of the SPR1000 and SPR500 Half Rack, providing unlimited rig-building opportunities.