11-17mm Tube Wrench, 11mm for the Axle Nuts and 17mm for the Non-Click and Click Action Adjustments
The Roll-Line TUBE WRENCH 11mm – 17mm is used to simply Tighten or Loosen the Action Adjustment on Roll-Line Click and Non-Click Skate Models, with the 17mm end of the Tube Wrench to adjust the amount of action desired.
The 11mm end used to tighten or loosen the Axle Nuts.