Easy to use :Gaoekoius inline fuse holders adopts a fuse plug-in terminal, which can closely connect the fuse and also facilitate the removal and assembly of the fuse. The included heat-shrinkable and waterproof intermediate connection terminal allows the fuse holder to be easily and quickly connected to the circuit. High quality material: Heavy duty inline fuse holder made of high-grade PVC insulation resists moisture, flame, acid, alkali, oil, and gasoline;UL1015 and CSA Ft1 VM-1 listed and approved.High strand count tinned copper conductor (Type III) for low resistance, high conductivity and protection from corrosion Wide Applications: Supports for ATC/ATO standard blade fuses of 5A, 7.5A, 10A, 15A, 20A, 25A and 30A; Perfect for car trucks, boats, RVs, ATVs, Jeeps, Motorcycles, Solor circuit,home circuit and much more Special design: Waterproof inline blade fuse holders cover has a special groove design that fits closely with the fuse holder. The waterproof rating is IP67, which can effectively prevent water, dust and dirt from entering and causing short circuits in the circuit. Packing include: 6 PCS 12AWG Inline blade fuse holder, 6 pcs 30AMP stand blade fuse , 12 pcs 3:1 waterproof heat shring butt. Gaoekoius 6pcs 12 AWG Waterproof Inline Blade Fuse Holder kits-6pcs 12 Gauge Fuse Holder with 6PCS 30AMP standard blade fuses / 12pcs Heat Shrink connectors(6 Sets)