DESCRIPTION: Size 7 CERAMIC detachable clipper blade. Ceramic blades feature a ceramic cutter blade. Ceramic blades offer the following advantages: Higher durability, stays sharper longer. Cutter runs cooler than steel. Feature a smoother, faster cutting feel regardless of length or density. Fits Oster A5 and many other clippers and brands using detachable A5 type clipper blades such as Andis, Wahl, etc.