The Gold Flex warm-up and tempo training aid is designed to improve your swing while providing a core muscle workout. The Gold Flex encourages a flatter swing plane and forces the downswing to be initiated by the lower body, both of which fight slices.Durable polyurethane head for frequent useShaft length helps flatten the swing planeFlexible fiberglass shaft teaches lag and helps eliminate early release/castingGolf grip with guidelines for proper hand placementHead weight improves kinetic sequencing in the swingStrengthens core golf musclesGreat low-impact stretch for pre-round warm-upFits easily in golf bag and is legal to carry on course