Roton Knives was started in 1990 with the first manufacture of a butterfly knife. It is so popular, they can't keep up with the continuing orders coming in even today. They have many different models of knives with an emphasis on traditional design, and high quality materials and workmanship and are always striving to produce new and appealing designs. All specialized processes (cryogenic  treating,  mil-spec type 3 anodizing, PVD coatings, blade blanking) are sent to other USA companies.