Do it.  Buy it.
Very good quality, all joints are tight and even and it doesn’t leave your hands smelling metallic. Very quick delivery, I ordered this and a few other things, his stuff came in two days before the amazon fulfillment items. I wish I bought a larger size. My ring size is a 7 and I got a 7.5.  It fits fine on my ring finger but is awkward. I find it’s more natural using on the pointer finger. It is quiet but not silent. A lot less annoying to others than a clicking pen.
Rating: 5 stars