General description The Roller Brush and Sweeper Accessories for iRobot Roomba S9 (9150), S9+ (9550), and S Series are designed to enhance the cleaning efficiency of your vacuum cleaner. Made from high-quality, environmentally friendly rubber, these roller brushes are durable, soft, and effective in removing dirt, dust, and debris from your floors. They are easy to replace, requiring no tools for a quick and effortless routine replacement. Technical specifications Color: Green Material: Plastic Package Contents: 2 Pairs of Main Brushes Measurement allowed error: +/- 1-3 cm Maintenance Replace the roller brush every 2-3 months, depending on usage frequency.