The CAP Barbell Neoprene Dumbbell is a convenient strength training tool for your home, office or gym. The durable cast iron core is covered in a thick neoprene coating to provide a firm and comfortable grip. Dumbbells are used to exercise all major muscle groups, including arms, chest, back, abs, legs and core. The benefits of dumbbell exercises include muscle building, improving core strength, boosting balance, providing better bone health, burning calories, increasing energy levels, enhancing overall mood and more. Dumbbells are perfect for training individual muscle groups or major muscle groups, HIIT workouts and walking.