【 Material 】 Made of copper material, it is sturdy, wear-resistant, durable, easy to maintain, and extends its service life. You will receive 10 x olive color and 10 x inlay. Effectively meeting your needs, please carefully check before purchasing to avoid purchasing errors. Built under strict quality control standards and with improved durability design. High precision, no oil leakage phenomenon. Easy to use: The olive shaped insert of the disc brake is easy to install and use. You don't need to use any tools or go to a professional repair shop, even beginners can complete the installation themselves. Widely used: Hydraulic disc brake cables can be applied to mountain bikes, road bikes, small wheeled bikes, and folding bikes, which is beneficial for the maintenance and upgrading of cables. The small and large features effectively replace your bicycle.