Comet CM-5M Mobile Antenna Magnet Mounts have the power to hold your antenna to your vehicle. These CM-5M are standard 4.5 in. magnetic-style with either an NMO mount or an UHF mount for either type of antenna base. They have 13 ft. of coax that terminates in a PL-259 (UHF male) connector. Comet magnet include a rubber boot to protect your vehicle's paint and a weather cap to cover the NMO or UHF mount when the antenna is removed. Comet CM-5M Mobile Antenna Magnet Mounts are gentle enough to not harm your vehicle, but strong enough to securely affix your antenna and keep it in place.