With surge protection protects the car electronics from electricity spikes dont get stranded by the wway side wtih these jumper cables you go from powerless to powerful so you can get back behind the wheel features according to din 72553 iso standard 6722 standard v 5116 high quality aluminum copper cables with the highest conductivity the cross section corresponds to a 16 mm copper cable four fully insulated easy grip poles minimum voltage drop at continuous power for petrol motor