Upgrade your bike’s braking system with the 10Set Bike Hydraulic Disc Brake Oil Pin Needle Insert Set from Avejjbaey. These high-precision and colored hose inserts are perfect for hydraulic brake hoses, offering a reliable and leak-free performance. Each pack includes 10 sets of bike brake and connector inserts, providing a convenient replacement option for your old parts. With a compact structure, small accessories, and excellent functionality, these copper bike and insert sets offer high hardness, temperature resistance, and corrosion resistance. Benefit from good sealing and deformation resistance for a safe and efficient biking experience.