This Spyderco Delica 4 is a limited edition distributor exclusive! The blade on this SpydercoDelica 4 is durable CPM Cru-Wear steel and features spine jimping that extends from the ramp to the top of the handle. The Spyderco original thumb hole on the blade allows ambidextrous one-hand opening for right or left handers and the phosphor bronze washers at the pivot make the blade action smooth. This Delica 4 has a lightweight carbon fiber handle with skeletonized stainless steel liners and a strong back lock mechanism. The handle features screw construction for quick, simple cleaning and adjustment. The pocket clip is 4-way reversible for tip-up/down and left/right carry.