1. Side brushes are easy to remove and replace as part of routine maintenance.It is made of high-strength and environment-friendly material, in use. 2. Main brush keeps your home robot operating at performance. 3. The Filter is washable. It maintain robot's cleaning performance while reducing infiltration of dust, pollen and other allergens into the air you breathe. 4. For best results, spare parts should be replaced every 2 - 3 months. Applicable Models for Eve Plus Model: SDJ01RM Material: plastic colour: As shown Package Contents: 1 x roller brush 4 x side brush 4 x hepa filter 4 x mop cloth 4 x dust bags Only the above package content, other products are not included. Note: Light 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.