General description Replacement kit for iRobot Roomba models including i7, i7+, i3, i4, i6, i8, j7, and E series. This kit includes essential parts to help your robot vacuum cleaner effectively remove dust and debris from corners and edges. Please confirm your vacuum cleaner model before purchasing. Technical specifications Color: As shown Material: Plastic Package Contents: 1 x Double Rubber Multi-Surface Brush 8 x Edge Cleaning Brushes 8 x Hepa Filters 8 x Dust Bags 1 x Screwdriver 1 x Cleaning Brush Measurement error allowed: +/- 1-3 cm Usage Regularly clean the replacement parts to improve suction and performance. It is recommended to replace the side brushes and filters every 2-3 months. Replace the multi-surface rubber brushes every 6 months, depending on usage frequency. If side brushes become bent during transportation, recover them by soaking in warm water.