The Lot of 5 Hu-Friedy Castroviejo Straight Needle Holders, measuring 5.5 inches, are designed for orthodontic use. Manufactured by Hu-Friedy in the United States, these needle holders are a valuable tool for precise and controlled wire placement in orthodontic procedures. Known for their high quality and durability, Hu-Friedy products are trusted by professionals in the dental industry. These needle holders are a reliable addition to any orthodontic practice.