【NMO Bracket】Antenna Mount brackets the surface is coated with black paint, which is sturdy and durable,strong in corrosion resistance,scratch-resistant and rust-resistant. 【RG58 Coaxial Cable】16 ft coaxial extension cable with PL259 plug for SO239 mobile radio. Designed with copper and wrapped in high quality PE jacket, which could maximum protect the signal over large distance. Pure copper wire reduces the loss of signal transmission. 【NMO Antenna Base Cap】Antenna rain base effectively protects the unused NMO antenna in all environments. The design of O ring seal in the base to keep water out. Especially removing the antenna when washing your car, the NMO rain cap protect the NMO base to prevent rust. 【Wide Application】The NMO kit widely used in mobile antenna with NMO connector. PL259 male connector compatible with Two Way Radio, Car SUV Truck Ham Radio, Mobile Radio, Midland, Stryker, Galaxy, Cobra, AnyTone, Amateur Radio Ham Radio that with SO239 female device. 【Easy to Install】Using self tapping screws, drill and install a stainless steel bracket with a hole diameter of 3/8" to 3/4" between the hood and fender / trunk groove, then simply connect the coaxial cable and antenna. Before purchasing, please measure whether the holes on the car align with our product.