Replacing OEM numbers : F9U22415, which is a direct replacement for the old or broken one. Product size: The carbon brush size of this product is 17.5mm long, 11mm wide and 6.5mm high. Manual measurements, please allow slight errors. Compatibility: This product is Applicable to most electric motors Product material: This product is specially designed and made of carbon and metal, with a long service life and not easy to damage Product packaging: Product include a total of 4pcs Carbon Brushes, which can completely meet your daily use needs and replacement., Manufacturer: VGOL