Lanfeld Iain Sinclair Cardsharp2 Credit Card Sized Folding Knife 65 mm long knife blade tip class manufacturing techniques to ensure a longer lasting sharpness. No safety sheath, effectively preventing the knife when not in use, exposing the blade and unexpected injuries, but also to prevent the blade wear. Credit card size, placed inside a pocket or wallet can be. Thickness 2.2 mm, weight 13 g, very lightweight. No part like an ordinary hinge rusty folding knife.