They are Missing rear locking pins . FREE Shipping!The Weight Plate Holder for 3 x 3 Power Rack is a sturdy and compact accessory designed for weight lifting enthusiasts. Made of durable metal with a rectangular frame, this black holder has a maximum weight capacity of 600.0 pounds and weighs only 5.31 pounds. Featuring a space-saving style, this product includes two racks to organize and store your weight plates efficiently. The package dimensions are 13.58x5.43x3.35 inches, making it easy to transport and store in your gym or home. Ideal for those looking to maximize their weight lifting experience with a reliable and functional storage solution.