The triggering of reflexes is easy with DocCheck + copy this possible, they really have a perfectly tuned Weight: fit comfortably in your hand, fall well when reflex tripping and are not too heavy for the coat pocket!
At the lower end of the handle a brush is built for testing the surface sensitivity, the handle itself is made of high quality plastic (looks like from graphite), the front part of the hammer is made of stainless steel. I bought the hammer without a needle on the hammer head, since I already use rather swab for sensitivity.
Am very satisfied with the hammer, although 40 are a bit expensive, but I think the hammer is long do good phone!