✔Compatible with: Upgrade your RC Models with 12mm Hex to Wheels/Tires that are 17mm Hex Hubs, Compatible with mostly brands 1:8th Models,such as Traxxas, Arrma, Redcat, Losi,Team Associated,HPI, Kyosho, HSP, etc.
✔Dimension: Hex 12mm-17mm; Axle Hole Diameter:5mm; Inner Diameter of the Nail: M4
✔CNC machined for precision.lightweight and durable,Increased strength and precision.Easy install from 12mm to 17mm
✔Package include: Set of 4 Adapter Nuts & 1x 17mm Wrench