The Viper Dart Flight Hole Punch Tool makes it easy to punch a perfect rectangular slot into your dart flights so they can accept a stem ring to keep flights securely on plastic or nylon shafts. Heavy duty steel and resin flight punch Punches a perfect slot into dart flights to accept a stem ring Prevents flights from popping off Compact and easy to use Includes three sets of stem rings, a total of 9 Does not include shafts or flights Product Details Length: 2.25 in Width: 0.81 in Height: 2.06 in Weight: 0.5 lbs Caution! Choking Hazard: This product includes small objects not suitable for children under 3 years old. WARNING: This product may expose you to chemicals such as Lead which is known to the state of California to cause Cancer, birth defects and/or other reproductive harm. For more information, please go to P65Warnings.ca.gov Questions about this warning? Check out our Prop 65 info page.