30LB HDRS Rubber Coated Solid Cast Iron Dumbbell with Contoured Chrome Handle, Hexagon 56723902Made of solid cast iron, weight marked in LB, perfect for home exercise and gym training, Efficient tool for strength training to build all major muscle groups including chest, arms, back, legs and core Durable rubber covered hexagon heads, prevent rolling and easy to storage. The heads are threaded and permanently attached to a solid steel shaft, thus enhancing the strength of the head and handle joint Chromed, ergonomically contoured, knurled