Totally redesigned to be the only Articulated Arm that locks firmly enough to be able to hold a small light fixture securely. The serrated ball joints and the redesigned end receiver are all part of Matthews Magic. The end receiver is a 5/8' Baby Pin on the outside and will accept the standard Dot, Finger or Flex Frame pin on the inside; and is tapped 3/8-16 internally to receive other camera accessories. Available only in the snap-in version for use with Super Mafer Clamp.