Articulated Arm, "B" Size Balls, Short Length Plastic Arm, Plastic Base Plate and 1/4-20 Camera Thread
Articulated Arm, Length: 3.9 inches (99 mm), plastic arm, 1 plastic diamond-shaped base plate with large 1" (25.4 mm) ball and 1" ball with 1/4"-20 camera thread mount, weight: 3.6 oz (102 g), The diamond-shaped mounting plate is 1.25" (31.8 mm) x 2.5" (63.5 mm).  Mounting hardware not included. This kit contains a RAP-B-201U-A arm, a RAP-B-238U base plate and a RAM-B-237U ball with 1/4-20 camera mount.