Swivel Damping: The knurled knob of this 4-sides hot shoe mount adapter is equipped with a rubber patch to protect your camera hot shoe rack accessories from being scratched
Multiple Mounting Points: 3 sides with 1/4'' screw hole, the other 2 sides with 3/8'' screw holes (front side with an Arri locating hole), come with 2 pcs 3/8'' to 1/4'' adapter; This camera hot shoe mount can be connected to any 1/4" & 3/8" arm to expand more equipment you need with hot shoe ball mount