The Spyderco Delica 4 Lightweight Blue Wharncliffe features a 2.9″ K390 microclean tool steel Wharncliffe blade wit a satin finish. It’s a manual opener with a thumb hole. This lockback has textured blue fiberglass-reinforced nylon handles with a stainless steel four-position pocket clip and a lanyard hole. It’s 4.25″ closed, 7.15″ overall, and weighs 2.3oz.