This is the Cressi Lizard Stainless Steel Dive Knife Features: Blade lenght: 10,5 cm - 4.13 inch Total lenght: 21 cm - 8.26 inch Thickness blade: 3,8 mm - 0.15 inch Italian-made professional, multipurpose diver&&';;s knife, with blade and handle in w 1. 14116 martensitic stainless steel, hardness hrc 55/56, for an extremely sharp and honed blade. A knife with a dagger handle designed specifically for fishing. In the body of the knife a part is intended for the extraction of stranded shafts and for straightening them. The knife can be removed from its sheath quickly and with one hand thanks to a special mechanical system