Nilight 32 Pcs Blade Fuses Maxi APX Replacement Fuses 20A 30A 40A 50A 60A 70A 80A 100AMP Assortment Kit for Cars Trucks RVs Boats Automotives Vehicle Campers SUV, 2 Years Warranty. The blade from the fuses are made of zinc alloy, provides superior conductivity and corrosion resistance. These fuses can protect your car or your electrical device from short circuit and overload.