161 Series by Atlas Sound is a Ceiling Baffle and is beautifully designed to fit the needs of an office. Installing it is hassle-free because it can be used on the ceiling or can be mounted on the wall, your choice of convenience. It has a loudspeaker mounting studs and also available in standard screw-mount configuration. There is no need to get worried because it has a Heavy-Gauge CRS Construction Guards Against Vibration and Rattle. This Baffle accommodates standard 4" (102 mm) diameter loudspeakers.