A Conditioning Bag For All Martial Artists! The 6 1/2" Bag Swings Freely From A Heavy Duty Chain To Help Improve Your Eye/Hand Coordination While Strengthening And Toughening Your Fingers And Hands. Bag Weighs 5 Lbs. Filled, Also Available Unfilled. Chain And Instructions Included. Toughen Your Fingers For Jab And Neck Attacks And Improve Your Hand - Eye Coordination