Keep the Oil on the Chain and Off the Rear Tire Motobriiz chain oilers port oil directly inside of the chain applicator via the discharge tube As your chain passes over the applicator, oil is delivered directly to the inside radius of your chain As the chain circles your sprockets, the oil is propelled outward via centrifugal force to coat the O-rings, pins, and rollers. You simply install the applicator on the chain slider, far away from your rear tire You get continuous oiling for 5,000 miles (8,000 km) Includes: Alcohol Prep Pad, Urethane Adhesive, Applicator Pad, Mixing Stick and Cardboard. Applicator Size Guide This is the cleanest way in the world to apply oil to a motorcycle chain!