For dental professionals and orthodontic labs - this is a bulk supply of stainless steel rectangular arch wires. You get 5 packs, with 10 wires in each pack, for a total of 50 wires. They're the rectangular cross-section type (not round), in an ovoid arch form that's commonly used in orthodontic treatment. Made from medical-grade stainless steel by AZDENT, MPN YG1320800000. These are brand new, sterile (in original packaging), and essential for creating or adjusting braces and retainers. Whether you're a dentist, orthodontist, dental technician, or dental student practicing techniques, having these standard wires on hand is crucial. They're manufactured in China to professional specifications. Always follow proper sterilization and handling protocols for patient safety when using medical devices.