VERSATILE – Dumbbells offer the ability to target specific muscle groups or a get full body workout. CONSTRUCTION – Built to last of solid cast iron with no welds, weak spots, or seams. Great for training indoor & outdoor (color may vary) FEATURES – Original Hex Shaped heads prevent rolling. The medium diameter handle provides essential grip and security during use. Vinyl coating is durable and protective. FUNCTIONAL – Perfect for training individual muscle groups or major muscle groups, HIIT workouts and walking.