Teng TENALU430 ALU430 43cm Single Track Socket Clip Rail This Teng Tools Aluminium Clip Rail is ideal for mounting on a wall or for use in a toolbox to conveniently store Teng sockets. It is suitable for use with clips for 1/4 3/8 and 1/2in Drive sockets which clip onto the single track rail and which hold the socket in place. Clips NOT included. The TENALU430 Section Rail has the following length: 430mm (17in).