1Waterproof Cover Design: The fuse kit has a unique double slot close fitting waterproof cover design to enhance prevent moisture, waterproof and dust resistance performance. 2Tinned Copper Conductor: Tinned copper is selected as the conductor for the fuse holder harness to ensure good bending performance, melting resistance and excellent electrical conductivity. 3Application: This fuse kit is suitable for adding additional circuits to cars, boats, motorcycles, CD players, fax machines, etc. 4Heavy Duty 18AWG Wire: This is an fuse kit with heavy duty 18AWG wire, which can better protect the circuit. 5Built in Fuse Holder: This fuse kit has a weatherproof built in fuse holder, sealed to prevent moisture and dust.