RUKO® SHARK® assisted opening knife featuring lightening quick spring steel liner opening system (S.R.D.S.) for rapid one-handed blade deployment; manual thumb slide blade lock with ball bearing detent to secure blade for safe carry, CNC Machined T66061 Aircraft Aluminum Handle with non-slip rubberized diamond pattern texture in black, ambidextrous thumb stud, locking liner design and an oxide finish reversible pocket clip. 440A Oxide Finish Stainless Steel 3-1/4” blade, closed length: 4-1/2”