Ultraedge blades fit all Andis AG AGC AGR+ and MBG Models Oster A-5 and most Detachable-type clippers. Carburized steel extends edge life - adds carbon to cutting edge creating blades that stay sharper longer. Carbon steel blade with chrome finish resists rust and keeps blades at optium performance. Size 15 leaves hair: 3/64 - 1.2mm. Animals: dog cattle and horse. Made in USA.