Resco Original Dog and Cat Nail/Claw Clippers Resco invented the guillotine style nail trimmer in 1937 and has proudly manufactured them in the USA ever since Patented blade replacement technology - Replace your blade at a fraction of the cost of a new trimmer. Premium chrome plating ads durability, comfort, and shine Recommended by Vets, Vet Techs, and Groomers worldwide Lifetime warranty - Resco guarantee's their products are of the highest quality and made to last.