General description These replacement parts are designed specifically for the 900 and 901 Robotic Vacuum Cleaner, ensuring optimal performance by maintaining the cleanliness and efficiency of your device. It is recommended to change the consumable replenishment kit every 2-3 months, depending on your usage frequency. Technical specifications Color: Gray Material: Plastic Measurement allowed error: +/- 1-3 cm Package Contents 2 x Main brush 3 x Filters 6 x Side brushes Other information