Features: 1.Hard anodized for a protective finish, CNC machined from billet aluminum, very durable in use and not easy to fade or rust 2.As hex socket ?threaded ?fasteners, these rear stand swing arm spools help to make the motorcycle swing arm stand fixed and stable 3.Comes with raised lips on their outer edges for security?, and they perform a good performance for a long time 4.Easy to install, they are bolted straight into your swing arm with included mounting bolts easily 5.Various colors for choices, can match your motorcycle perfectly Specification: Description: These rear stand swing arm spools are designed to be widely used for easy stand location. Comes with raised lips on their outer edges for security and CNC aluminum alloy materials, so they can be used for a long time. Your stand will work even better when coupled with these spools. Make your rear stand the best! Features: 1. Hard anodized for a protective finish, CNC machined from billet aluminum, very durable in use and not easy to fade or rust. 2. As hex socket threaded fasteners, these rear stand swing arm spools help to make the motorcycle swing arm stand fixed and stable. 3. Easy to install, they are bolted straight into your swing arm with included mounting bolts easily. 4. Various colors for choices, can match your motorcycle perfectly. 5. Comes with raised lips on their outer edges for security, and they perform a good performance for a long time. Specifications: Material: Aluminum alloy after CNC machined Color: Silver, Red, Blue, Gold, Green, Black(optional) Stainless Steel Bolts Size: 10mm Swing Arm Spool Body Size: 2.2cm x 2.1cm Package Weight: 60-81g Fitment: 10mm : For Ninja 250 ER6 Z 250 ER6F Package Included: 1 x Pair of Swing Arm Spool(2 pcs) Notes: 1. Easy to install, but professional installation is highly recommended. 2. Please Ensure Your Motorcycle is in our compatibility. PackageList: