Scanpod Instrument Pod - Uncut - Arm Mounted - Fits 1" - 1.3" RailsCurrent sailboat designs often have very open cockpits with few options for installing retro-fit instruments.Options available to install a 7" display or standard instrument.Arm Mounted:Extend the Rail Pod away from narrow or crowded rails for better viewingDesigned to ensure the Pod is always positioned for best viewing, whatever the angle of the rail