100% compatibleThis roller brush is perfectly compatible with iRobot Roomba E Series E5 E6 i Series i7 i7+ i7 Plus i3 i3+ Robotics, 100% suitable.EXCELLENT PERFORMANCEThe iRobot Roomba roller brush is made of high quality rubber with a rubber tread designed to grab and break dirt from any floor type. Brush replacement parts can penetrate deep into corners and edges to remove even more dirt, dust and deposits.Maintenance: Depending on the frequency of use, it is recommended to replace the roller brush every 2-3 months to maintain the excellent performance of the vacuum cleaner.Easy to replace: the iRobot Roomba roller brush is the same size as the original, fits perfectly, snaps into place and is easy to replace.Super Value Package: Our product contains 2 sets of brush replacement parts that you can replace (Note: when you use the roller brush for the first time, there may be noise, but it will disappear after a while)