Kirby Aftermarket Brush Roll To Replace OEM 152505 to fit G5 through Avalir (Firm bristles) Aftermarket Brushroll to fit Generation 5 (G5) through Avalir (AV) Kirbys. High quality aftermarket part made from natural wood. Replaces Kirby OEM Part # 152505 Has height adjustment for longer use of brushroller, can be moved down as bristles wear out over time. 14.5 inches long.