You are looking at a brand new NOS Suzuki fuel tank gas cap kit. The gas cap will fit Suzuki.
Please check out my other listings for more rare Suzuki GS & Katana parts. The item "Genuine Suzuki Gas Cap Fuel Tank Cap gs1100 gs1000 gs850 gs750 gs" is in sale since Friday, January 10, 2020. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Other Motorcycle Parts".
The seller is "retro-motorcycles" and is located in Seattle, Washington. This item can be shipped worldwide.