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 Silver Anodized Aircraft Aluminum Handle with Genuine Carbon Fiber inserts, ambidextrous thumb stud, locking liner design and an oxide finish reversible pocket clip. 440A Oxide Finish Stainless Steel 50/50 Serrated 3-1/4” blade, closed length: 4-1/2”