General description Replacement Parts Accessories for iRobot Roomba vacuum cleaners, including models i3, i4, i6, i7, i7+, J7, E3, E5, E6, and E7. This kit includes essential components to maintain the performance of your robot vacuum. Technical specifications Includes: 2 Rubber Brushes 3 HEPA Filters 3 Side Brushes 1 Cleaning Tool 3 Free Screws Usage Filters should be cleaned every 3 uses and replaced every 1 to 3 months depending on usage. Side brushes should be cleaned every 4 uses. Central brushes should be cleaned every 1 to 2 uses and last 2 to 4 months depending on usage. Regular maintenance is crucial to prevent hair and dirt accumulation, which can weaken the vacuum and damage components. Other information If the side brush or main brush hairs wrap in the small box, it is normal. You can soak them in warm water (about 85℃) for several minutes to recover. This will not affect the quality and performance of the brushes.