2929qr Vrbl Friction Arm W/q Articulated arm with large locking knob. Variable friction and locking of arm obtained by adjusting the knob. Supplied with quick release camera plate with secondary safety lock based on the 200PL-14 camera plate mechanism. Ideal for mounting a photographic or video camera exactly at the angle you need it. Fits any 5/8” female socket, works especially well with 035 Super Clamp.