Flap measure 16"wide. 534779001 Replaces Part Number :527549001.Ryobi Mower Parts Type : Trailing Shield Guard. Lawn Mowers Rear Shield /Guard Flap Replacement Part. Compatible with Ryobi 40 volt 20"" cordless electric lawnmower models: RY40107, RY40108, RY40109, RY401011, RY401012, Smart Trek RY40LM03, RY40LM30. High Quality Shield Kit: Made of premium materials, capable of withstanding long-term use and various environmental conditions, and effectively isolating grass clippings, soil, water, and other debris generated by the lawn mower blades from splashing. It helps maintain the cleanliness of the vehicle and reduces wear and corrosion of rear components. Convenient Maintenanceand Easy Cleaning:The guard flap's simple design allowsfor effortless upkeep, ensuring cleanlinessand smooth operation. 534779001 Rear Skirt Guard Flap Compatible with Ryo-bi Lawn Mower Ryobi 20" Cordless Electric Lawnmower Models RY40107, RY40108, RY40109, RY401011, RY401012, Fits Smart-Trek RY40LM03, RY40LM30