The HEPA-style filter uses E12 HEPA material, and captures up to 99.5% dust, allergens, and particles.Superior pick-up of pet hair, dirt, dust, and debris and works on floor types-hardwood, carpet, and tile.The side Brush gives you extra assurance that you're getting right up against walls and deep into corners for superior cleaning coverage.The parts and accessories are made of environmental-friendly materials and are almost maintenance free.To keep your robot running at performance, the parts are recommended to be replaced every 2-3 months.It is easy to be replaced and installed on your robot vacuums.Roller Brush:1),Using the deign of mixing the bristle brush and blade brush together,which comes with lower noise and much cleaner.2),The roller brush use a wave-like design, which can gather the dust and dirty particles together and send them to the dustbin box easily.Colour:Photo ColorMaterial:plasticPackage Contents:2 x rolling brush 2 x filter 2 x wiping cloth 4 x side brush 2 x cleaning brushOnly 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.