Features: Designs be a convenient tool for filling oil in mountain bikes and road bicycles, making it essential accessory for bike maintenance. Ensuring your bicycles braking system functions smoothly and safely. Specifically designs for road bicycles, this oil reservoir help maintain perfectlyperformance by keep your bike's disc brakes well lubricated. Compacts and easy to carry, great for outdoor activity. Suitable for mountain biking, outdoor exploration, and any occasion that requires quick lubrication of the chain. Specifications: Materials: Aluminum alloys Size: 20ml/50ml Color: Silver Color/Blue 20ml size: about 120x26.5mm/4.72x1.04inch 50ml size: about 117.5x40.5mm/4.63x1.59inch Package Includes: 1Pc Oil Dispenser Bottle note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.