Apollo Athletics Iron Power Clubs - 5-10-15-20 lb. Indian Club Set (Pairs) - Exercise Bats Includes: (2) 5 lb - 14.5" long, (2) 10 lb - 16" long, (2) 15 lb - 18" long, (2) 20 lb - 19.5" long. Durable ductile iron. Machined with painted black finish. Smooth texture for easy grip. Great weight distribution. Sleek design on the ends for fluid behind the neck and overhead swings. Builds grip strength and power in the wrist. Builds core strength through rotational exercise. Rotational swings assist with rehabilitation of shoulder injuries.