Your hand should not be limited to pointing, poking and gripping. The 9mm-wide titanium ring is a multi-tool sporting five blades that fold individually out of the ring. A comb, a straight blade, a bottle opener, a saw, and a serrated blade.
Now you can handle many situations using no other tool than the one you’re already wearing. Check first it’s legal to wear one in the place where you live. $385.The Titanium Utility Ring.