Clean brushes keep your home robot operating at peak performance. Side brushes are easy to remove and replace as part of routine maintenance. Filters maintain cleaning performance while reducing infiltration of dust, pollen, and other allergens into the air you breathe. For best results, filters should be replaced every 2 to 3 months. Compatible Models: for e, i, & j Series i7 i7+ i2 i3 i3+ i4 i4+ i6 i6+ i8 i8+/Plus j7 j7+ E5 E6 E7. Material: Plastic + Rubber Color: Green + Black Package Contents: 8 x Rubber Brushes 12 x High Efficiency HEPA Filters 12 x Edge Sweeping Brushes 2 x Filter Cleaning Tool 2 x Screwdriver 12 x Screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.