The middle Quill!
~1.4 ounces and ~3.5" long and ~1/3 thicker than the Slim Quill
Fits the vast majority of fists
Hand forged from 303 stainless steel to resist corrosion 
Ergonomically designed for versatile grips and carry options
Diamond cross section comes to a pyramidal point
Hand filed to break edges on the corners for additional grip comfort