Abrasion is the process of scuffing, scratching, wearing down, marring, or rubbing away. The thin coating reduces moving friction and reduces cylinder wall scuffing. Tumbled and glazed ones reduce friction and avoid scuffing the surface of the accessory. A smooth glazed cylinder wall can cause piston ring and cylinder scuffing. It must be packaged to protect it from scuffing, vibration, crushing, dropping, humidity, condensation. Vacuum suction cups are used to move the parts to prevent scuffing. Faf du Plessis scuffing the ball against the zip of his trousers. Due to the importance of their appearance, scuffing of their skin is likely a problem.