This Modular Extension Lead is perfect for anyone who is building their own telephone system. The extension lead is 5 m long and has a RJ12 plug on 1 end and a RJ12 connector 6P4C on the other. This modular lead is used to connect telephones to modular wall sockets. It is 5 m long which makes it a great option if you need to move your phone away from the wall socket. It has a RJ12 plug on 1 end and a RJ12 connector 6P4C on the other. This lead is white.