1. Has a four piece insert nut set for the air conditioning units 2. For Audi/Volkswagen/Opel/Vauxhall and 7pce of star bits (security) for the ECU, Airlow, mass sensors and injection pumps on BMW, Fiat, Mercedes-Benz, Peugeot, Renault, Rover, Toyota as well as Audi, Volkswagen, Opel/Vauxhall 3. Supplied in a blow mould case for storage 4. Contents:- 4pc valve and insert nut set for air conditioning 5. fitted to Audi / Volkswagen and Vauxhall/Opel 6. - 7 x 5 point tamperproof bits TS10 / TS15 / TS20 / TS25 / TS30 / TS40 for use on ECU/Airflow/mass sensors/ injection pumps