The product is a speedometer with an ignition switch and key, designed specifically for 79-87 Yamaha QT50 QT 50 Yamahopper scooters. Made by Yamaha in Japan, this part is compatible with the QT 50 model and is an OE/OEM part number 509-83510-A0-00. This speedometer is a crucial component for controlling the speed and ignition of the scooter, ensuring optimal performance and safety while riding.

I have almost a complete bike, let me know if you are interested in any other parts.