Columbia River Knife & Tool - Large Lake 111 L.B.S. Safety Lockback Knife with Part Serrated Blade: Model CR-7256. 4" closed. Part serrated blade. 8Cr13 stainless blade with dual thumb studs. Features the Lock Back Safety (L.B.S.) button which locks the blade in the open or closed position. Textured black aluminum handles. Stainless pocket clip. Made in Taiwan.