Features1STEEL MATERIAL: Made of steel material, sturdy and durable, not easily damaged, and can be used for a long time. 2EASY TO USE: Compact and lightweight, easy to operate, easy to replace parts of your bike at any time. 3THREAD CONNECTION: The accurate internal thread ensures a tight connection with the flywheel and moderate operation. 4EASY INSTALLATION: Comes with a small size and a light weight as well, this freewheel adapter can be easily installed for convenient use. 5IDEAL REPLACEMENT: Wonderful replacement for the old and damaged parts, fine workmanship, attention to details, helps you improve your bike performance!SpecificationItem Type: Bike Freewheel Adapter Material: SteelPackage List1 xBike Freewheel Adapter<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store