General description These TriCut Brush Parts are designed for various robot vacuum models including H40, M40, M30S, M30, X10+, X20+, S10+, S20+, X20 Pro, C102CN, and B116. Made from high-quality plastics, these brushes ensure optimal cleaning performance. Technical specifications Material: Plastics Package Contents: 2 roller brushes Allowed measurement error: +/- 1-3 cm Usage For best performance, it is recommended to replace the spare parts every 2 to 3 months as part of normal maintenance. The brushes can be easily removed and replaced.