Tactile Turn Bolt Action Pen - TitaniumThe unique bolt action shape allows for one fluid motion to advance or retract the refill because the surfaces of both the interior part and the inside surface have been carefully machined to be extra smooth, the action feels amazingly satisfying. If there's one pen that we recommend to new customers, it's the Bolt Action. Specifications Manufacturer Tactile Turn Collection Bolt Action Type Ballpoint Body Material Titanium Capping Bolt Action Length