The Hu-Friedy Lot of 6 sterilization cassettes includes 5 and 10 instrument cassettes, designed specifically for use in orthodontics. Made by the trusted brand Hu-Friedy in the United States, these cassettes are intended for sterilization and organization of orthodontic instruments. Ideal for dental professionals in need of reliable and high-quality cassettes to maintain proper hygiene and cleanliness in their practice.