Thank you for viewing. This is a rubber grip for an Activator. When attached, it reduces the strain on the practitioner's hand. The rubber grip fits the hand and absorbs the impact when striking. * This item has been handled by a person once, so it is considered a used item. Please consider this before purchasing. Please refrain from purchasing if you are sensitive to this. * If you have any questions, please feel free to contact us. When attached to the Activator or Activator body, it becomes very stable and makes the treatment easier.