The practical ARNOLD cleaning scraper easily removes grass residue from every corner of the mower housing. The tooth on the outside loosens even stuck-on and encrusted grass buildup. Includes a clip (25-28 mm) and reducer (20-25 mm) for mounting on the strut of the lawnmower After cleaning, we recommend treating the entire underside of the mower housing with ARNOLD Grass Anti-Stick Spray (6021-U1-0077). This guarantees easy cleanup.