Oil on your rear tire is very unsettling We have a better way. Oil ports directly inside of the chain applicator Oil is delivered directly to the inside radius of your chain only as your chain passes over it. The oil is propelled outward via centrifugal force to coat the O-rings, pins, and rollers. Applicator installs on the chain slider, far away from your rear tire Consistent oiling for 5,000 miles (8,000 km) Includes 3 each: Alcohol Prep Pad, Urethane Adhesive, Applicator Pad, Mixing Stick and Cardboard. Applicator Size Guide The best way in the world to apply oil to your chain