High Quality Trucks : Made of nylon and copper wire, with good bending characteristics, melting resistance and excellent electrical conductivity, durable and suitable for DIY. Power supply set : contains 3 pieces of standard current, 3 pieces of mini dieb, 3 pieces of micro2 current, 3 pieces of low profile current, 12 pieces of feet. Dual Car Safety Slots: There are two fuse holders, one to protect the existing circuit and the other to protect the new circuit. Blue flex socket end, easy to connect with a vice to any bare wire. Easy to Use :The car power thief is inserted directly into the slots of the busy or free fuse box under voltage, making it easy to install additional circuits without junctions or cuts. MULTIPURPOSE FUSE - You can use this dual slot puller when adding LED strips, radar alarms, dash cams or other electronic devices that need to be wired directly with the fuse box without cutting or joints.