This Arius by Koenig knives features a mirror tumble finish blade with thumbhole and flipper. The handle has a nicely milled titanium frame with a titanium tip up clip, matching titanium backspacer. Has ceramic bearings and a ceramic detent ball. Nice detent, lockup and blade seating. Comes with original box and COA 2/12/2021. Gen4B4. Has scuffs and scratches, and some staining on the blade. Great user condition otherwise.