SmallRig NATO Clamp with Magic Arm 2028B includes a NATO clamp and a magic arm. The 3/8" and 1/4" threaded holes on NATO clamp could be attached to magic arm with 3/8" or 1/4" screws. One end of magic arm could be attached to monitor directly, and the other end could attach NATO clamp 1973 and then attach NATO Rail 1933/1195 on Cage 1965/1982. The NATO clamp is compatible with quick release in different scenarios, and it is very solid and convenient.