Cyclists and bike mechanics, this 10-set of brass brake hose inserts is exactly what you need for maintaining your hydraulic disc brakes! Each set includes both the olive and insert components made from premium brass that's rust-resistant and super durable. The high precision manufacturing means perfect fitment for your brake hoses with no oil leakage issues. Compatible with Shimano BH59 and BH90 brake hoses, as well as Avid and SRAM hydraulic systems - covers most major bike brake brands. The 0.7x0.5cm size is standard for these applications, ensuring proper sealing and connection. Perfect for when you're installing new brake hoses, replacing damaged components, or doing brake system maintenance. The brass material provides excellent corrosion resistance while maintaining the strength needed for reliable brake performance. Installation is straightforward - these are designed as direct replacements for your existing olives and inserts. Having 10 complete sets means you've got plenty for multiple brake jobs or to keep as spares in your workshop. Much more affordable than buying individual components from bike shops. Essential for any home mechanic who works on hydraulic disc brakes regularly. The quality construction ensures reliable performance and safety - crucial when it comes to braking components! Whether you're building up a new bike, upgrading your brakes, or doing routine maintenance, having these essential small parts on hand makes the job so much easier. Your hydraulic brakes will maintain proper pressure and performance with these quality replacement inserts and olives from heyous!