Rubber pads.It is securely locked by 1/4 inch, 3/8 inch screws on the top with additional rubber pads on the base plate to prevent twisting and scratching. In addition, the rubber pads can protect the camera from scratches. | Plate for Arca Swiss StandardThe quick release plate for the Arca Swiss standard, which allows you to attach your camera incredibly quickly to the ball head of your tripod. | Thread hole.The plate is fixed to the bottom of cameras or cages with screws. The clamp has several 1/4 inch - 20, 3/8 inch - 16 threaded holes and thorough mounting holes on the bottom, so you can attach it to tripods, booms and other devices. |