X-Frame Double Pull Up Assembly is designed to perform pull up exercises when installed to the upper hybrid utility cross beam of an X-Frame rig. The X-Frame series is the latest in squat rack design. Combining high durability, extreme strength and industry leading stability, the Australian engineered design is made from heavy-duty commercial 65mm x 65mm steel tube. The flexible modular features ensure X-Frame components and accessories can adapt as your training schedule requires.