Dura-Bell Urethane Hexagon Hard Chrome Dumbbells Dura-Bells Weight: 7.5 lbs Urethane Encased Heads Reduce Noise Includes 30 mm Ergonomic Hardened Chrome Handles are Secured to the Heads of Dura-Bell Dumbbells with a Patented Process Collect the Whole Set: 2.5-100 lbs Manufacturers 5-Year Warranty on Structural Integrity