The PunchRing from NukoTools is one of the most compact and easy to carry single finger knucks on the market. I reviewed one of the original ones and I loved it. NukoTools has tweaked the design of the original and the 2nd generation PunchRing is now available.
The new version features the new NukoTools logo and some ergonomic improvements. The most noticeable of the ergonomic improvements is the addition of cutouts on either side of the finger hole. These should serve to make the PunchRing more comfortable and more secure when it is gripped.
Like, the original PunchRing, These are handmade from G-10. G-10 is lightweight, bull strong, and completely non-magnetic. It is a great material for this application.
I am looking forward to getting my hands on one of the new Gen 2 PunchRings for review.