General description The 24 Pack Replacement Rolling Brush is designed for use with RoboVac 11S, RoboVac 15C, RoboVac 30, RoboVac 30C, RoboVac 2, and RoboVac 35C robotic vacuum cleaners. Made from high-strength materials, these durable brushes capture 99.99% of particles, including those as small as 0.3 micrometers, ensuring non-allergenic fresh air is expelled during cleaning. The brushes operate quietly, reducing noise levels and creating a peaceful environment for your family. Technical specifications Color: Blue Material: Plastic Package Contents: 24 x Roller Brushes Measurement allowed error: +/- 1-3 cm Usage Regularly replacing the roller brushes is essential for maximizing cleaning performance. For households with pets, it is recommended to replace the roller brush every 2-3 months.