VERSATILE – Dumbbells offer the ability to target specific muscle groups or a get full body workout. CONSTRUCTION – Iron core made from ASTM A48 Grade 20 grey iron then precision dipped in 3mm of vinyl for safety and comfort. 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. CHOICES – This dumbbell group from CAP is available in sizes 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, and 15 lb.