Feature: 1. Compatibility: Designed for repairing the issue of oil leakage for SHIMANO XT M785 M666 M596 M615 and other disc brake lever oil cylinders. 2. Rubber Material: Constructed with premium rubber materials, ensuring sturdiness, durability, provide long lasting performance and withstand wear and tear. 3. Efficient Repair Solution: Stop oil leakage and restore the proper functioning of your disc brake system with this seal gasket, ensuring safe and reliable braking performance. 4. Easy Installation: Designed for hassle free installation, allowing you to quickly and effortlessly replace the sealing gasket. 5. Essential Repair Component: An essential replacement part for repairing the disc brake oil reservoir cover and brake lever, ensuring proper functionality and safety. Specification: Item Type: Road Bike Brake Lever Oil Diaphragm Material: Rubber Weight: Approx. 3g / 0.1oz. Package List: 1 x Road Bike Brake Lever Oil Diaphragm