Drop down ceiling mount compatible with WallVIEW 50, 70 and 100 camera systems. Fits Sony HD1, WallVIEW PRO HD1, WallVIEW CCU HD1, EVI-HD1, EVI-HD3V, EVI-HD7V, PCS-XC1 and compatible with Polycom EagleEye HD, EagleEye I, EagleEye II, EagleEye III, Cisco Precision HD and Precision 60, Lumens VC-B30U, and 1 Beyond AutoTracker 3. Extends approximately 2 feet below the ceiling.