The Ivanko 10 Pairs of Rubber Dumbbells 5LB- 50LB Set features durable, heavy construction specifically designed for joint isolation exercises and allows a wide range of motion during workouts. Provides great muscle strength, it helps in removing any strength imbalance as well. The Ivanko 10 Pairs of Rubber Dumbbells 5LB- 50LB Set offers protection and comfort for hands facilitating cosy workouts each time.