This is a mount for a Nanlite PavoSlim LED panel light with a single 5/8" baby pin protruding off the back that was designed to be inserted into a grip head and mounted on a stand. It features 4 pins on its rear plate that were designed to seamlessly attach to the mounting points on the back of PavoSlim panels. A locking pin on this mount keeps it securely affixed to the PavoSlim panel, and this spring-loaded pin can easily be pulled to detach the mount. There are also arrows printed on the back of its mounting plate that allow you to quickly line-up where it needs to be placed to quickly attach to the PavoSlim. It's durably constructed yet still lightweight and compact.