The Viper Rhino 1 is a large pocket knife that feels remarkably comfortable in hand. It was designed by Fabrizio Silvestrelli. What immediately stands out, besides the size of the knife, is the blade, as it combines different shapes and features a cool compound grind. When opened, the blade is locked by a solid back lock. The heavily modified sheepsfoot shape of the blade slopes up a bit. In doing so, the protrusion on the spine of the blade clearly shows where the name Rhino comes from.