ProSoft Vibration Inserts are designed to dampen the vibrations that make your wrists, shoulders and elbows ache at the end of a round. And they work! Save money, buy the shafts you REALLY want (not overpriced shafts with vibration dampening already installed), and install ProSoft Inserts™ in the shafts. The Inserts do not add weight. No need to worry about affecting swingweight. They install easily. Purchase individual inserts for only 46 cents each. PLEASE NOTE: If you purchase the inserts individually here, you will need to have or purchase an installation tool to properly install them.