This is a genuine Yamaha Royal Star Tour Classic windshield mount, part number STR4NL034000/STR-4NL03-40-00. It is designed for use on street motorcycles and is made from chrome steel. The mounting style is bolt-on and it is compatible with OE/OEM part numbers STR4NL034000/STR-4NL03-40-00.  Item will ship Tuesday or Thursday only, I am only in the shop on these days, Please send a message prior to making an offer, most of them expire before I see them. All sales are final, will only ship to the lower 48.