Thicker and more durable stainless steel chain links and pro style swivel with zinc galvanized finish offers increased strength, more efficiency and tangle-free heavy bag training. Pro style swivel allows heavy bag to naturally move and spin without bunching or knotting. Includes four high strength end S-Hooks for quick and convenient attachment. Fits heavy bags with four top D-rings. Ideal for heavy bags up to 100 lbs. 24” Length.