This replacement blade is a high-quality component which is sourced directly from the original equipment manufacturer for use with Murray riding lawn mowers and garden tractors. It is a high-lift blade with larger wind wings which increase airflow and aid in bagging grass clippings, especially on riding mowers with long discharge tubes. O...Read morever time blades tend to wear out and may get damaged eventually requiring replacement to maintain a clean cut lawn. This part is made of high-quality metal and it is sold individually.