Definition:Specially designed for WLtoys K969 K979 K989 P929 1/28 RC Car PieceEasy to install and durable.For these parts, upgrade your RC car.Powerful and resistant to use high quality metal material.Increases overall performance in use and durability instantly.Specification: SanaPapprox.19mm / 0.75in; max length: approximately.22mm / 0.87in; Hole distance: approximately. :Please allow slight size difference due to different manual measurement.