5" Modular Mount Aft Raked 7x7 Base Top Plate Required - BlackThis Seaview Modular Radar Mount works with 18" - 24" closed dome radars. The modular design allows you to add various accessories and different top plates at any point, thus making it a cost effective choice. A Seaview Modular Top Plate is required and sold separately!Modular Top PlateA Seaview Modular Top Plate is required to mount a radar, satellite dome, camera or search light, and is sold separately. Modular DesignThe modular design allows the user to not have to replace the entire mount when a different radar or satdome is used. Instead the user can just replace the top plate. Compact DesignSpecifically designed to not take up a large amount of space results in the perfect solution where space saving is a must.