The Locking Liner 2-disc DVD?by Don Robinson shows you how to make your own Barlow style locking liner knife. The video is almost?four?hours long. Instructions on the video include everything you need to know to make your knife. You are shown from start to finish how to transform the raw materials into cutlery art. A template for the knife is included. Length: 3 hr and 46 minutes, color, full screen.