This trainer is built with a slim sleek design and a smooth handle surface. The sturdy sandwich construction is assembled in layers that are pinned or screwed together though may sometimes use a ball-bearing system. They allow the pivot pins to be adjusted tighter without binding. When the knife is closed, the blade rests between the layers. Both handles have a unique darkened stone finish. The comb is made from ABS with a steel handle and frame. Both pivot pins are riveted for added security and the end of the bite handle features a safety latch. Overall Length: 8.62 Inches.