[Perfect fit Part replacements]Compatible with iRobot Roomba I series i4(4192) i4+(4552) i3(3150) evo i3+ (3550) i7(7150) i7+ i7 plus(7550) i6(6150) i6+(6550) i8(8150) i8+(8550) i1 i1+, E seris E5 (E5134) E6 (E6199) E7 and j Series j7(7150) j7+ (7550) Plus robot vacuum.[Highly Efficient Filtering Technology ] Two premium quality rubber brushes are perfectly matched, one for peeling off dirt and the other for sweeping dirt. The side brush reaches deep into corners and edges to remove more dirt, dust and debris. The cleaning filter blocks 99.97% of dirt, dust and other particles as small as 0.3 Micrometres in size.[Easy to Install Clean]Clean by hand washing in warm water and let it completely air dry before reusing them. Regularly clean replacements parts to improve suction and perford extendsmance an the life of your . For best results, edge-sweeping brushes and filters should be replaced every 2 - 3 months.Multi-surface rubber brushes should be replaced every 6 months.Colour:Photo ColorMaterial:plasticPackage Contents:4 x Roller brush8 x Side brush4 x Dust bag8 x FilterOnly 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.