The Callaway Impact Bag is a golf training aid that promotes consistent impact position for added distance. Learn the feeling of the correct ball impact for your swing and improve your accuracy. Hitting into this high quality impact bag helps eliminate fat and thin golf shots and helps cure slices. This durable golf training aid encourages a flat wrist at impact and helps you develop correct muscle memory for a perfect swing. Fill it up quickly and easily with towels or clothes to use at home or on the practice range. Made with heavy duty, high impact material and zipper.