"This diamond base adapter with 1.5"" ball attaches directly to the Microsoft Xbox Adaptive Controller. Pair with your existing RAM Mounts system to place the controller exactly where you need it. When you're not using the controller, swap it out with any compatible RAM 1.5"" ball base, such as the RAM X-Grip cradle for phones and tablets. This inclusive gaming adapter includes hardware and a hex wrench for mounting an Xbox Adaptive Controller."