Features: * brand new high quality *Made of high-quality materials, and practical Parameter: Material: aluminum alloy Color: black/red Size: 39x35mm Thickness: 1.0/1.5/1.85/2.0/2.18/2.35/2.5MM *8/9-speed hub body, with 8/9-speed flywheel without gasket; *8/9-speed hub body, with 7-speed flywheel, requires 2 2mm washers *8/9-speed hub body, with 10-speed cassette, requires a 1mm washer *11-speed highway tower base, 8/9/10-speed flywheel is installed, a 1.85mm washer is required *2.18mm, used for 11-speed flywheel splint gasket repair parts *2.35mm, used for 10-speed flywheel splint gasket repair parts Product List: Washer*1 Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Compatibility - MTB Grooved Hub Washer 1.0/1.5/1.85/2.0/2.18/2.35/2.5MM Bottom Bracket Spacers Good Performance Materials - These bike accessories are made of premium material, ensuring their durability and long-lasting performance. Optimal Performance - These accessories offer versatility and adaptability to different cycling needs and provide optimal performance and reliable functionality enhance the riding experience and ensure safety. Easy Installation - These accessories can be easily installed on your bike to get your bike running again. After-sale Serive - We provide high quality products, if there is any problem with our product, please contact us.