General description Replacement Roller Brushes designed for I1, I1+, I3, I3+, I4, I4+, I5, I5+, and I6 models. Made of high-quality materials, these brushes ensure optimal performance for your cleaning machine. Regular maintenance is essential, and these brushes can be easily removed and replaced as needed. Technical specifications Material: Plastic Package Contents: 6 pairs of roller brushes Allowed measurement error: +/- 1-3 cm Usage It is recommended to replace the roller brushes every 2 to 3 months to maintain the machine's best performance. Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.