In a collaboration of Buck Knives and TOPS, the Model TBT-001 liner-lock folder (with a .065-inch liner), has a tough G10 handle that is a variation on those from Buck's rugged Bravo and Bravo Rescue models. The TOPS-designed blade is a 3 1/2 inch modified Tanto blade, made of 0.175 inch thick, high-grade ATS 34 stainless steel. For optimum performance, the blades are heat-treated to the exacting standards of world famous heat-treater Paul Bos, and finished with Buck's advanced Edge2x technology that makes the blade sharper out of the box, hold an edge longer and easier to re-sharpen. There are several carrying options, with a reversible steel clip for pocket or belt, and a sheath is also available.