This listing is for 1 set of 2 cables to test OBD Mazda/Ford vehicles with the 17 pin connector. If you have a flashing warning light (Glow Plug, ABS or HOLD light) this will allow you to quickly get to the heart of the problem. Included: 1x Jumper Wire 1 x LED (colours may vary) Postage included. Full instructions for use given on purchase.