Built for professional gyms, industrial and institutional use! Designed to custom fit any heavy bag. Professional grade, industrial strength stainless steel chain links with zinc galvanized finish and super grade pro style swivel. The pro style swivel allows heavy bag to naturally move and spin without bunching or knotting. Includes five chains for larger heavy bags with five top D-rings. Chain(s) can be removed in seconds for hanging heavy bags with four or less D-rings. Complete with two high strength Spring Hooks and five professional grade quick links for speedy, convenient and secure attachment . . . every time! Custom fits heavy bags with 2, 3, 4 or 5 top D-rings. Ideal for heavy bags up to 250 lbs. 29” Length.