This is a brand new bicycle truing tool.This key is used to tightening or losening bike wheel nipples / spokes in order to true your wheel.

• It is used on spoke nipples sized 10-12-13-14 (most contemporary nipples are of 14 size)
• It has the advantage that it is double face, at one side is 10-12 and at the other side is 13 and 14 only. So it is easier in use and you don't have to be so carefull not to be so accurate since the one size of the other has adequate distance as not to make a mistake.
• Very smart and handy tool.
• outside diameter is 40mm.
• This tool is 5mm thick so as to cover the whole nipple's side surface for a firm grip.
• Chromed steel