Constructed from tubing & steel topped with a durable powder coat. These bars have a center bar covered with 1-1/4'' Sch. 80 pipe coated with a textured powder for durability & slightly oversized to spin. This allows you to freely move your bar side to side for perfect alignment. The bars are equipped with rubber bumpers to protect the metal & paint on your Prodigy Power Rack. These are made for 3'' square uprights with 1'' through holes.