I personally never knew of the name Hidetoshi Nakayama till I came across an image of his Bolt Action pens. First time I saw them I remember thinking this is the coolest pen I have ever seen and I want one. I'm not a pen guy, but I love carrying my large bolt action pen. Definetly a unique mechanism. It's approximately 5.90 inches in length, 0.78 inches in width, 2.89 ounces in weight, made of stainless steel bars, takes Schmidt ink cartridge. 100% handmade by Hidetoshi Nakayama. One of the most iconic writing instruments in the world. If you get a chance please check out Hidetoshi he truly is a master of his craft.