The best magic hand I've tried! And I've tried several! They always loosen, or the threaded connection comes off the stop wheel, or they are too tight or too loose or too short. These guys made a complete design of this little one! It's easy to unlock, move and lock again. It is very noticeable when fitted tight, great length and freedom of movement. It even came with extra friction o-rings just in case something happened. I definitely want a few more of these. Locking pins mean you know whatever you attach will stay right where you put it. This is important for me. I use my flash a lot for macro photography and I can't tell you how many times my flash would go down and crash into the subject when I tilted the camera the wrong way. Never again!