Versatile Replacement Parts: Dual Multi-Surface Rubber Brush Extractor features a durable rubber tread to pick up and sweep dust and debris from any type of floor, iRobot Replacement Side Brush Roomba gets deep into corners and edges. Easy to install and durable to keep your home clean and tidy. Easy to clean and replace Clean spare parts regularly to improve suction power and extend the life of your vacuum cleaner. Edge sweeping brushes and filters should be replaced every 2-3 months and rubber polygon brushes every 6 months. Intimate ServiceThe spare parts are made from high quality eco-friendly materials, which is the best choice to keep your home clean and tidy. If you encounter any quality or other problems after purchase, please do not hesitate to contact us. We will resolve it within 24 hours.