This is heavy duty pull up bar made of alloy steel for 650 lbs Weight Capacity with a black powder-coated finish for superior rust resistance and consistent performance in wet basements and open garages, providing safe and reliable support for every workout.48-inch standard width design is compatible with a wide range of wall materials, including concrete walls, solid brick walls, and wood support panels.proper spacing can prevent the body's back or arms from hitting the wall when doing pull-ups, ensuring that the movement is not limited. Whether it's a home, gym, backyard or garage, it can be quickly transformed into a professional training space, truly realizing “zero space transformation, fitness without boundaries”. Innovative design of dual anchor bolt interface, in addition to basic pull-up training, can be flexibly connected to TRX suspension band, resistance training band, boxing sandbags, yoga stretching band, strength training rope and other accessories. Through modular expansion, it is easy to upgrade a single pull-up bar to a comprehensive training station, allowing the same equipment to realize multiple training needs. From standard chin up and backhand pull-downs to hanging leg raises and boxing swing training, one piece of equipment can cover core muscle groups such as triceps, biceps, shoulder deltoids, rectus abdominis, latissimus dorsi and pectoralis major. The scientific movement design helps to shape the inverted triangle back muscle line and sculpt the outline of the waistline, so that every training is accurate to the target muscle groups, and efficiently achieve the goal of body shaping.In addition, the assembly is also very simple, the accompanying graphic instructions help you quickly assemble, quickly start the fitness journey!