[Compatible Models]Perfect for Explorer 20 40 50 75 RG7687/RR7687WH Serie Smart Force sweep x3 Robot Vacuums. Made of high-quality [HEPA Filter]Made of high-strength environmental-friendly materials, which can block most of dust down to 0.3 micrometer. The filter can maintain the cleaning performance of the sweeper, while reducing the penetration of dust, and others into the air you breathe. [Easy Installation] The side brushes are perfectly matched and the installation is the same as the parts, which is easy to install, easy to use [Excellent Performance] Our side brush's innovative structural design effectively prevents hair and other garbage from being entangled and enhances the ability to collect garbage. It can get deep in to corners and snug against walls and baseboard to an excellent clean area. A dust filter is created in tiny dust and to reduce secondary air pollution. Applicable Models Compatible with For Smart Force Essential For Smart Force Essential AQUA For Explorer Serie 20 For Explorer Serie 40 For Smart Force Essential For Explorer Serie 20 For Explorer Serie 40 For X3 Color: As Shown Material: Plastic Package Contents: 1x Main Brush 4x Mop Cloth 3x Filter 4x Side Brush 1x Cleaning Brush Only the above package content, other products are not included. Note: Light reflection 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.