Ram Double Socket Standard Arm with Security Pin-Lock Knob for 1 inch Diameter Ball Bases (sku 30630)Ram Double Socket Standard Arm with Security Pin Lock Knob for 1 inch Diameter Ball Bases This is a 1 inch diameter ball compatible standard lenght double socket arm with a mixed combination 7 pin lock security nut and key knob. The security solutions are designed to withstand the harshest environments where mounts are commonly used. This socket technology allows for almost infinite adjustment and perfect viewing angles. With an emphasis on aesthetics