Beiter Plunger 5/16 Black Recommended for advanced archers, a popular and repeatedly purchased item loved by many top athletes. Tuning is possible while attached to the handle. Spring tension is micro-click adjustable. Size: 5/16 inch 17.5-23.0 mm Weight: Approximately 22g Accessories: Wrench, spare springs, Allen wrench, tip, and screwdriver. The numbers on the plunger are slightly worn, but there are no noticeable scratches on the plunger itself. Used approximately twice a week for practice for about six months. *Please feel free to contact us if you have any questions or concerns. Although unused, please consider purchasing only if you understand that it has been stored at home.