Body Maxx Pair Of 12.5 kg Rubber Coated Professional Hex Dumbbell Set. Finest quality, highly durable and long lasting , Dumbbell for resistance training—great for arms, chest, back, core, and legs Solid cast-iron core for reliable strength; will not bend or break after repeated use Hexagon-shaped rubber-encased ends help prevent rolling and promote stay-in-place storage , Handles designed to fit comfortably in palm of hands , Ergonomic chrome steel handles professionally built for comfort and ergonomics, the hexagonal rubber dumbbells feature a knurled handle grip for improved confidence and stability