FEATURES Improve club head speed and technique for a?more consistent swing? Includes two weights that can be configured into three club weights to work?on overall swing for overload, underload, and counterweight training Use only the shaft with no weights attached to warm up and build muscle?memory with a 20% lighter club? Attach only the counterweight (yellow) to help practice hand speed through impact Train with both the head (black) and counter (yellow) weights to help?increase overall swing speed with a 20% heavier club Weights easily twist into place and are designed to fall off if not attached properly