No-Toil Air Box Cover protects dirt, debris, liquids, and any cleaning agents from entering your air intake while cleaning your bike! In order to properly clean an air box, you need to remove your air filter and clean the whole air box with cleansers and water. No-Toil makes this air box cover out of a hard, composite material that completely covers your air intake and won't allow any liquids to penetrate to your intake. The contact point on the air box cover has a strip of soft rubber that creates an impermeable seal. Simply remove your air filter and install this air box cover - Your air box is now ready for cleaning with No-Toil Air Box Cleaner. Note: Air Box Cover now comes with a bonus exhaust plug at not extra cost.