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, Rubberized black Anodized Aluminum/G10 Insert Handle, ambidextrous thumb stud, electroplated locking liner design and an oxide finish reversible pocket clip. 50/50 Serrated 440A Oxide Finish Stainless Steel  3-3/8” blade, closed length: 4-1/2”