These durable cast-iron hand weights feature a neoprene shell that provides a comfortable nonslip grip. The hexagonal shape keeps the weight from rolling while not in use and helps to prevent damage to floors. Ideal for beginners to advanced in a home gym or studio for muscle toning and weight training, cardio and aerobic workouts, physical therapy and rehabilitation and much more! Sold as singles in 3 lb, 5, 8, 10, 12, 15 Pounds.