I just installed the Techmount Gripper using the control mount option. It took maybe 10 minutes, everything you need is in the package. I have a Samsung Note 5 in a thick Otter Box, fits perfect.. This thing is great, I highly recommend it. I tested it today going over railroad tracks at 30 mph phone didn't move at all. The Gripper is very strong. Check out the you tube video. I purchased it on Amazon for around 60 bucks