Sirui VP-VH10QR Quick Release Plate
Compatible with VH-10 and VH-10X Heads
Mounting Screws, Safety Pin Padding to Protect/Prevent Twisting.
Features
Use the VP-VH10QR Quick Release Platform from Sirui to mount your camera onto the Sirui VH-10 or VH-10X fluid head. 
The plate allows you to quickly mount and unmount your camera, and it features red safety stopper pins to prevent your camera from twisting on the plate. 
Padding on the top also helps protect the camera and to further prevent twisting.