Astra Depot 10X Chrome Bolt Topper Cover Fit Motorcycle 11.5mm Socket Head Screws w/Hex Drive Package includes: 10 pcs of Chrome Bolt Topper Cover Fits for all motorcycles with 11.5mm socket head screws with hex drive Internal spring retention clip resists vibration and thermal cycling Aftermarket chrome inner diameter 11.5mm bolt cover set (10 pcs) Built-in steel that can keep and hold the bolt tightly when riding bikes