Description 

The Sirui MP-20 Quick Release Plate Adapter is very useful if you and a buddy are headed into the backcountry and plan on sharing a spotter. This adapter allows you both to run whatever tripod head you like but use the same plates, saving weight and money. It utilizes a dual safety lock mechanism to ensure your quick-release plate stays in place and keeps your gear safe. It features horizontal and vertical bubble levels on the side and a dot level on the top. It fits on 3/8" mounting bolts with a brass adapter for 1/4", and is compatible with most Arca plates.