The product is a genuine OEM Yamaha O-ring specifically designed for the Yamaha TT500, XT500, and SR400 models from various years. This vintage part is a small O-ring with the manufacturer part number 93104-12054, ensuring a perfect and authentic fit for your motorcycle or scooter. Ideal for those looking to restore or maintain the original look and performance of their Yamaha bike, this O-ring is a reliable and high-quality component that will help keep your vehicle running smoothly.