Feature 1Bicycle accessories, easy to install and durable. 2High hardness, corrosion resistance and long service life. 3Suitable for SRAM Stealthamaig. 4Convenient and practical, easy to install and use. 5Professional manufacturing, stable performance and high reliability. Condition: 100% brand new Item type: QuickInstall Olive Head Material: Stainless steel + aluminum alloy Color: As picture shown Weight: Approx. 15g Suitable tubing size(outer diameter x inner diameter): Approx. 5.0x2.0mm/0.2x0.08in Suitable for oil discs: for AVID full series oil discs, the brake lever has for STEALTH-A-MAJIGI brakes must use olive head Installation: 1. Put on the tubing screw, and use for T8 box spanner to turn the oil needle into the oil tubing clockwise. 2. Install the olive sleeve, you can screw the olive sleeve directly counterclockwise by hand, pay attention to counterclockwise 3. Install on the brake for AVID Package List 10 x Oil needle10 x Olive head 1 x Installation tool