Resco Candy Colors, Original Dog Nail and Cat 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.