BUCK Protege&trade; Serrated Model 450FX Part No. 2621 Lightweight lockback folding knife with one-hand opening and partially serrated blade. Weight: 3 oz. (85.1 g.). Handle Material: Black rubber over glass-filled thermoplastic Carry System: Heavy duty black nylon sheath Blade Steel: 420HC. Blade Shape: Clip, serrated. Knife Type: Folding, Lockback Catalog #: 2621 Model 450FX. Sheath included.