Check the listing for details. Universal Heavy Duty Battery Master Isolator Cut Off Kill Switch 2 Keys 12v 24. Condition: New. Listed at 10.85 USD. Battery isolator (also known as cut-off or kill switch) Supplied with 2 keys and 1 dust cover A very simple way to isolate vehicle electrics. Can be used either as an Anti-Theft device or to isolate either the starter battery from the rest of the vehicle or auxiliary batteries from the charging system. On our versions the turn tab on the base of the key is brass, versions with this section in plastic tend to break rather quickly necessitating the purchase of another key. Available in 2 versions: Standard Version: Max load 1000Amp @12Volt for 10 seconds, 100Amp continuous, 500Amp @24Volt for 10 seconds 8mm copper terminals, single key, rain/dustproof key shaft cover, 2 fixing points Suits 12 or 24 volt THIS IS NOT WHAT YOU ARE BUYING - THIS THE USUAL EBAY VERSION Heavy Duty Version: Max load 1400Amp @12Volt for 10 seconds, 180Amp continuous, 700Amp @24Volt for 10 seconds Robust construction with 19% injected fibreglass 10mm copper terminals, 2 keys, 4 fixing points allow a choice of mounting positions Suits 12 or 24 volt THIS IS WHAT YOU ARE BUYING You cant buy better - see my feedback on this item Sent direct from the UK from a UK supplier with UK stock so should arrive in a few days