On top of this base, the Core module mounts, and the lens module sits on top of the Core module. 360 Mods, 1" Mods, and 4K Mods are all compatible. The base and camera can be attached to the Vertical Bumper Case, a separate exterior case that neatly encases the entire setup. It has a 1/4"-20 tripod mount on the bottom, and a bumper case allows access to the threaded mount on the bottom. The Vertical Battery Base can be used in underwater activities only if set up with the 360 Mod inside the optional ONE R Dive Case for Dual-Lens 360 Mod, which is a vertical dive case specifically for such a setup.