These are 20cm long jumper cables made using highest quality QED XT400 speaker cable terminated with QED Airloc spades.They are intended for use with speakers with 4 bi-wire speaker sockets where you have lost the existing blanking plates or wish to replace them with a higher quality alternative.They would be used where you wish to connect stereo cables to your bi-wirable speakers. By using spades the existing 4mm sockets are still availablee for connecting the stereo speaker cables.The picture shows a single jumper cables. Two speakers will require a pair of jumpers.