4-pin spiral cable with an elasticity of up to 9.8 ft. ; Brass and nickel-plated housing and knurled nut; Threaded fittings plug and socket ensure every connection is waterproof; Shielded cable helps reduce video noise interference; PVC insulation provides good protection from corrosion, moisture and heat; Includes 1.64 ft. 4-pin cable with male and female trailer connectors and 49.21 ft. extension cable;