ONLY COMPATIBLE with Pro Clubline SPR1000/SPR500 Power Racks TRANSFORM YOUR SPR1000/SPR500: The SPRHBH accessory lets you hang a combat or boxing Heavy Bag from your SPR1000 power rack. By securely attaching this accessory, you open a wider range of workout possibilities, whether you're practicing boxing, martial arts, or simply enhancing your cardio and strength training. Enjoy a seamless integration that turns your power rack into a multi-functional sports hub, empowering you to customize your fitness regimen like never before.