Features: Hex Elite TPR dumbbell 5LB-10LB's feature a unique 25MM diameter handle 12.5LB-125LB's feature a larger 35MM diameter handle for added comfort and grip diameter Welded 360 degree steel core to handle Solid steel core for reliable strength TPU Thermoplastic Polyurethane Heads Hexagon-shaped rubber-encased ends help prevent rolling and promote stay-in-place storage Weight: sold in 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 90, 80, or 100lbs. Additional Details: Brand : Tru Grit Fitness