1. Practicality: This replacement kit is designed for W90 PW-R040 vacuum cleaner to a and provide optimal performance for your device. It is a must-have household cleaning tool and an indispensable accessory for maintaining a clean and hygienic home environment. It is designed to effectively collect dirt and debris to your floors are spotless. 2. Roller Brush Replacement Kit: This kit includes 3 roller brushes to and continuous performance. Its sturdy structure prevents rapid wear and tear, making it a reliable choice for daily cleaning, providing replacement parts for efficient cleaning. 3. Enhanced Cleaning Efficiency: This roller brush has thick and soft bristles that can deep clean the floor and effectively remove stubborn stains, ensuring that every area the robot passes through is thoroughly cleaned. Make sure you have enough replacements to keep your device in optimal working condition for longer. 4. User-friendly Installation: These accessories are designed for easy installation and can be quickly installed in your vacuum cleaner. The design meets production standards and is convenient to install. They are designed to fit the model precisely and can be quickly replaced without professional help. 5. Maintenance recommendations: To maintain the performance and life of the vacuum cleaner, it is recommended to regularly clean and replace accessories as needed. To optimize cleaning efficiency. These accessories that your vacuum cleaner operates efficiently and ensures that every area the robot passes through is thoroughly and carefully cleaned. 100% new and high quality Made of high-quality materials, more As part of normal maintenance, it can be easily removed and replaced It is best to replace spare parts every 2 to 3 months to keep the machine running at its best performance Colour:As Shown Material:Plastic Package Contents: 3 * roller brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.