Features Firmer locking: the hub locking ensures a firm locking and fixing, and can connect the drive line power to the wheels in 4WD mode. Stable driving: the compact but sturdy structure ensures safe and stable driving on various rough terrain, very reliable. EASY WORKING - With the large manual dial, users can easily switch from 2-wheel driving mode to 4-wheel driving mode. Easy installation: with light weight and compact size, the easy installation can be completed quickly. Wide Match: OE numbers are 40250-2S610 and 402502S610, for Xterra SE, for D21 Base Extended Pickup etc. Specification: Item Type: Wheel Manual Lock Gear spline and teeth number: 28 spline. Colour: silver. OE: 40250-2S610 402502S610 Package list: 1 x manual wheel lock. Small Note: Installation instructions are not included. Professional installation is highly recommended. Package List 1 x Wheel Manual Lock