Pocket Pro Pen: The Auto Adjusting EDC Pen

An auto-adjusting pen that's perfect for everyday carry The body of the Ti Pocket Pro seamlessly telescopes in length to accommodate different sized refills, while the auto-adjusting collet grip ensures a wiggle-free fit at the writing tip. Operation is as simple as unscrewing the body, popping in your favorite Parker or Rollerball style refill, and tightening it up. The design does the rest. Specifications Length (w/ shorter ballpoint refill installed): 4.11" (104.5 mm) Length (w/ longer rollerball refill installed): 4.65" (118 mm) Body Diameter : 0.38" (9.7mm) Grip Diameter : 0.45" (11.6 mm) Weight (empty) : 0.6 oz (17 g) Materials Titanium versions: Grade 5 Titanium: Pen body, pen tip, grip, and all internal parts (no plastic parts) Grade 4 Titanium: Pocket Clip (for proper tension) Industrial Strength Silicone: O-rings that go on the body of the pen Brass & Copper: Solid Brass / Copper: Pen body Grade 5 Titanium: All internal parts (no plastic parts) Grade 4 Titanium: Pock