Product Features： 1.High-hardness stainless steel constructed blades. 2.Fitted with a crack-resistant plastic base (green component) – cost-effective yet robust and durable, with a service life equivalent to that of metal bases. 3.Each blade is integrated with no less than 3,000 fiber optic bundles. 4.Matte finish on the blade surface reduces glare and enhances the field of view. 5.Handle with knurled design for superior anti-slip performance. 6.Not suitable for high-temperature and high-pressure sterilization.