Mars XL brass knuckes The clip is designed to

The clip is designed to go into a uniform pen pocket

This is a second version with slightly changed dimensions from the first batch

This version of the cTOOLhu is 1/4" thick brass with a blasted finish and is exactly the kind of pocket tool H

This is an old design that I quite like

1/2" thick brass keychain and defensive tool

Mars XL brass knuckes The clip is designed toI'm calling this the Mars XL because, quite frankly, I can't think of another name and it's a modified Mars. These are 1 2 inch thick brass. They are similar to the Mars, but have the obvious extension into the palm to help keep the point straight. Oh, the point is also a little bigger than the Mars.