This is an unusual capo design, which is great in creating a very neat, unobtrusive capo. It's easy to fit and remove (pay attention to the instructions, in particular which bits to press, and that you have to (counter-intuitively) press it almost the same way to open and close it). It's plastic, which was initially offputting (would it be sturdy enough?) but that doesn't seem to be a problem in practice. There are two downsides: the first is that the pressure-pad on the underside doesn't sit centrally on the guitar neck (unless you have quite a wide neck), so you have to position it carefully to get it to press evenly on all six strings. The second problem is that the rubber cover on the main arm, that contacts the strings, is too soft. That probably compounds the first problem. If it was a less spongy rubber it would press on the strings more firmly. Having said that, after a couple of attempts I figured out how to set it successfully for my guitar neck and now all is fine and it works perfectly.