Most powerful home-use pet clipper using detachable professional blades for all over grooming on all coat types. Also compatible with oster model a5. Do not use on cats. Size 4 high carbon steel skip tooth clipper blade. Powerful Rotary Motor Clipper With Detachable Size #10 Blade, 4 Snap-On Comb Attachments, Clipper Blade Lubricating Oil And Basic Step-By-Step Instructions And Hard Case.