Materials: 440C stainless steel comb teeth; the blades are sharp and durable, and wont rust when exposed to water. It is more heat-resistant than traditional carbon steel and produces less noise during use.

Compatibility: Compatible with Andis/Oster A5 and Wahl KM10 series dog clippers

Size: #40 Cutting Length: 1/100 inch (0.25 mm)

Professionalism:Dedicated to the R&D of professional A5-series blades for pets. We are experts in the pet blade industry. If you receive a product with hair on it, it is because every blade we ship has been tested for cutting performance and has never been used by anyone else.

Customer Service:If any blade set you purchase does not fit your machine, please contact customer service.