Description: Comprehensive set: This bike olive hose fittings set includes connector, bike oil pins, olive heads, sealing rings, and joints to meet all your bicycle maintenance needsQuality material: The hydraulic disc brake adapter is made from premium stainless steel and copper sealing materials. It's wear resistant, sturdy, not easily deformed, and can be used for a long timeEasy to use: This bicycle olive hose adapter is easy to install and serves as a great accessory for your bicycle's maintenance and repair needs. It's user friendlyApplication: This bike olive hose connector offers stable performance and reliability. It's perfectly suited for 5mm bike oil tubes but please note that it is not suitable for 6mm oil tubesPortable: The bike olive hose fittings accessories are compact in structure and lightweight making them portable enough to be easily stored or used to replace your old or damaged parts Specification: Material:Stainless Steel and Copper Size Chart: Inner Hole Diameter About 0.5cm/0.20inch Package Includes: 2 Straight Connector,2 Olive Heads,2 Oil Pins,2 Small Seals,2Pcs Ball Head Joints,2 Large Seals Note: Please allow slightly errors 1-2cm differences due to manual measurement.