General description The 6 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: 6 x Roller Brushes Measurement allowed error: +/- 1-3 cm Usage Regularly replacing the roller brushes is essential for maximizing cleaning performance. It is especially recommended to replace the brushes every 2-3 months if you have pets.