The Size #50 21mm Nic K-Files are high-quality stainless steel root canal files designed for dental use. This 5-pack includes a total of 30 files, perfect for endodontic procedures. With a focus on precision and durability, these K-Files from the trusted brand Nic are ideal for dental laboratories, endodontics, and dentistry. Easy to handle and maintain, these files are a reliable tool for professionals in the healthcare industry.