Valor Fitness LC-53 Steel Weight-Lifting Chains, 53-Pound HEAVY DUTY- Two 5.85-foot-long Solid Steel chains with each link measuring 3.75 in. X 2.5 in. SECURE- 2.5 in. collar constructed from Chrome plated 12-gauge solid Steel, designed to securely grip the bar and to hold weights and chains in place to prevent shifting when exercising. Simply twist the pin in the center of the collar to tighten. CHAIN LOCKING PINS- Solid Steel pin runs through bottom of collar and is easily removed to add Steel chains for increased resistance or remove chains to use as individual collar. UNIQUE STRENGTH TRAINING- Can be used for a dynamic movement that increases concentric resistance when lifted and decreases resistance when lowered. This process only takes place when chain links rest on the floor and is lowered and raised off the floor. ADDITIONAL- Sold as a pair. Combined weight of 53 lbs. Includes collars and screw pins. 5-year warranty.