Dumbbell sets are sold in 5 LB increments. A specifically formulated rubber blend is overmolded and bonded to this dumbbell core to provide an unmatched level of quality at an economical price. Underneath this protection lies the industry’s best press fit, with the dumbbell head and shaft hydraulically pressed and secured together to prevent loosening and rotation. Pressed and bolted handle to head Handle Style: Straight, hard chrome plated Handle Diameter: 1-1/4" Also sold individually. Warranty (Each Dumbbell): 3 Years