All you need to keep your darts in top condition.
The Balancepoint Cool Tool is the only O'ring installer which allows you to carry your spare O'rings on the installer. No need to go searching for your bag of O'rings (which you lost in the car). Simply slide the O'rings down the Cool Tool onto your shafts or tips. Includes 9 o'rings. Simply slide the O'rings down the Cool Tool onto your shafts or tips.