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.