Adapter Only. Requires a Rokform RokLock™ compatible phone case (Rugged of Crystal series) and RAM® mount, sold separately. The Rokform Universal Ball mount phone holder adapter is designed to work with the RAM® 1” ball mount. This compact cell phone ball mount adapter assembly features a CNC Machined Aluminum body, lock, and lever arm for long-lasting durability and secure phone mounting. The all-black finish blends perfectly into your bike's controls and will quickly and easily secure your phone in portrait or landscape mode. The 1” rubber coated ball allows for easy adjustment for the perfect viewing angle and a secure hold. A detachable lanyard is included for an extra layer of security on and off the bike. Aluminum Lock Lever - Provides security and won’t get brittle and break from the sun. Quickly Secure Your Phone - Twist on and off with our patented Roklock twist lock system. Universal Ball Adapter Phone Mount - Works with all ROKFORM twist lock cases and 1” RAM® Socket Mounts. Safety Lanyard - Included for added safety and convenience. Universal Fit - Use your Rokform case in more places than ever. How to use:Push the lever down and twist the phone clockwise, and you will hear a solid click. To remove it, push the lever and turn the phone counterclockwise.