This Survival Knife by Kevin dates back to early 1986 and is in excellent condition. The top edge is sharpened back 3 1/8 inches from tip to the beginning of the Sawteeth. Spine at the guard is 1/4 inch thick. Tang extends 1/2 inch beyond the scales to provide a skull crusher/glass breaker. The scales are removable with the special screwdriver provided, revealing a storage space for survival gear and a small compass (not included). The sheath has a side sleeve for a sharpening rod, a front pouch for a sharpening stone and a sleeve pocket on the back of the sheath. This is a great buy.