These high quality booster cables (jump leads) are designed for use on vehicles with up to 5.5Litre petrol or 3.0Litre diesel engines. Surge protection eliminates the possibility of damage to vehicle on board computers when being jump started. The 3.5metre cable length means vehicles do not need to be bumper to bumper when jump starting. Engine Capacity: 5.5L (petrol), 3. 0L (diesel)Length: 3.5mCable size: 29mm sqSuitable for 12 and 24V batteriesCopper coated aluminium cablesDurable PVC insulation, resistant to oil, grease and battery acidMax boost current 350V.