Use SafetyMarine battery terminal holder uses the battery main circuit fuse which is safe, small, easy to carry and use, and can greatly save installation space. Exerllent MateriaThe main material of the waterproof fuse block base is thermal property phosphorous copper nickel plated , which is resistant to temperature and wear. The stainless steel material of the studs and nuts has good electrical conductivity and strong oxidation resistance. Sophisticated Design Fuse block Kit can prevent accidental short circuit, dust and reduce the impact of the environment on the performance of the fuse holder. Waterproof CapThe terminal mount fuse block kit with waterproof cap makes rust resistance more durable use. Package includes 1 terminal fuse box,1red insulating cap,1washer,1lock washer and 1 hex nut. Wide UsesBattery terminal is widely used in the circuit protection of new energy vehicles, motor homes, cruise ships, cranes, batteries, charging piles and other DC main power supplies, windlasses and bow thrusters. Specification: Material: cap(PVC),studs and nuts(stainless steel), base(phosphorous copper nickel plated+nylon fiber) Color: red+gold+silver+black Feature:easy to use, high temperature resistance Size(approx.): base(L x W):6.2 x 2cm/2.44 x 0.79inch height:4.1cm/1.62inch hole diameter:1cm/0.39inch ignition protected:NO maximum amperage: 200A maximum voltage: 58V DC terminal stud: M8(5/16") maximum torque: 75 in-lb fuse speed :M/ medium speed Package Included: 1 PC x Terminal Fuse Box 1 PC x Waterproof Cap 1 PC x Washer 1 PC x Lock Washer 1 PC x Hex Nut Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement.