Pivot MountPart Number: M-1 M1 Pivot Mount brackets are designed to allow maximum mounting versatility for PolyPlanar box speakers (MA-9060, MA-800, MA-7500 and MA-1610) and other popular name box speakers. Since all speakers are directional, M1 brackets allow you to point your speakers in whatever direction produces the best sound quality for the location, whether you're in a small cabin or on the upper deck of a luxury yacht. The brackets also perform exceptionally well when mounted in marinas, restaurants or backyards.FeaturesSimple mounting that allows you to mount speakers in difficult locationsCorrosion-proof constructionThey rotate up to 360deg