I don't need much to write or to describe. product is as it is described. workmanship is good and precise. Yes it is not notch top product as one which ELektor is selling but also price is not so high. So i am happy with it and must say that shipping is fast and all communication with seller was great.
I found these kind of by accident and glad I did. I ordered a pair (and the seller is wonderful to work with) and got them quickly. I quickly put them to good use. They are well made. The adjustment is smooth and sensitive to the touch. Between the weight and the magnet they are stout and steady as they hold the PCB firm. I am looking forward to bringing them to the next makers meeting. I didn't really rate the documentation as the instrument pretty much explains itself.