Conair Pro Pet Clipper Replacement Blade Durable and detachable Cryogenic cutter technology Stays over 50-Percent cooler and 50-Percent sharper longer than conventional blades Universal fit on all detachable style blade clippers: Oster, Andis, Wahl, Laube Size 7F, 3.2 mm Durable and detachable Cryogenic cutter technology Stays over 50-percent cooler and 50-percent sharper longer than conventional blades Universal fit on all detachable-style blade clippers: Oster, Andis, Wahl & Laube Size 7f, 3.2 mm