1. Clean brushes keep your home robot operating at peak per compatiblemance. 2. Replacement filters compatible NEABOT Q11 Vacuum Cleaner Robots. 3. Filters maintain vacuum cleaner cleaning per compatiblemance while reducing infiltration of dust, pollen and other allergens into the air you breathe. 4. compatible best results, spare parts should be replaced every 1 - 3 months. Color: material:plastic Package Contents: 1 x roller brush 4 x side brushes 4 x filters 4 x dust bags 4 x mops Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.