Resco pet nail clippers have been around since 1937, when they invented the guillotine nail clipper. Since then, they have been making clippers and trimmers in Walled Lake, Michigan and are one of the last pet nail trimmer companies manufacturing here is the US. Cherrybrook now carries a complete line of Resco products including Resco guillotine-style and scissor nail clippers, Resco clipper accessories, Resco choke collars, Resco show leads, and Resco combs.