If you have a Garmin mounting system for your GPS, with the ball head, it's very good. This is a block that you can attach to other devices so that they will clip into the Garmin mounting system. This one fits the 5" Garmin Nuvi mounts. The smaller mounts are very similar and simple changes in the SCAD should allow them to be fit as well.
I'm a computer person who grew up on a farm. I enjoy all kinds of making. Programming, electronics design, rough carpentry, whatever.I am a mentor for FIRST Robotics FRC team 1502, "Technical Difficulties" at Chelsea High School.