Dive/River Knife - Rill Simple ToolsThe Frogman dive river knife is a multiuse knife that is great for any waterman. Originally these knives were considered dive knives. But this shape has so many more uses. a super sharp blade, serated top edge, and a hammer butt; makes Frogman great for fishing, diving, boating, kayaking, and river rafting. made of high quality stainless steel. Durable nylon handle and sheath. Sheath has a click in feature making it secure for leg, vest, or travel.