The Baculus is a tasteful titanium bolt-action ballpoint pen from WE Knife Co with a machined design including a comfortable embellished grip for your fingers while writing. The bolt action is used for extending and retracting the black ink cartridge and is more fun to use than a standard pen clicker. If you love to fidget, this pen features a fidget spinner on top that can deliver hours of busywork for your fingers. The ball end also doubles as a glass breaker.