Standard 4 wire phone/modem cable with American style RJ11 plugs on both ends (which is the smaller plug pictured). Black colour. New.

Some phone equipment may require 4 wires, so this is the cable (but works with normal phones too).

If you need an RJ11 equipment lead you can use a nice tidy phone lead like this instead of buying ugly adapters for your old phone cables.

Picture is indicative only. May take a couple of extra days if its a busy week. Happy to combine auctions for delivery.