Features: 1.Lightweight and compact size, easy to carry and storage. Convenient for your travel. 2.Easy to Use: Just point the lubricator to the bicycle chain and turn the bicycle pedal, the lubricant will be automatically and evenly delivered to the chain, and the whole process takes only a few seconds. 3.Chain oiler will releases the capacity of lubricant which bicycle chain really needs.No oil splashes around, no oil leaks. 4.Wide Application: Suitable for all kinds of bikes, such as road bikes, city bikes, mountain bikes and folding bikes. 5.100% Satisfaction: If you have any question, please feel free to contact us.We will try out best to help you. Notice: Please allow 1-3cm deviation due to manual measurement Actual color may be slightly different from the image due to different monitor and light effect Description: Material: Reusable Plastic Diameter: 5.8cm Thick:1.7cm Package List: 1x Bike Chain Oiler Lubricator