Hopewell Precision was contacted by CBS's Truck Division. They had an Antenna that needed to be removed quickly from the Rook Rack area. Hopewell designed , fabricated & delivered a light weight sliding mount. The mount has a multiple location mounting base plate. The Antenna itself is mounted onto a sliding plate that can be removed within seconds be disengaged with 2 spring hinges....no tools required............The Mount Material is made of 6061-T6 Aluminum....No Steel in order to keep the weight on the vehicle as low as possible......