Compatible ModelsThe replacement roller brushes fits for iRobot Roomba I&E&J Series i3(3150) i3+(3550) i4(4150) i4+(4550) i6(6150) i6(6550)+ i7(7150) i7+(7550) i8(8150) i8+ (8550) Plus E5(5150) E6(6198) E7(6134) j7 (7150) j7+ (7550) Vacuum Cleaner. High QualityThese replacement brush rolls for roomba are made of high-strength, eco-friendly materials with durable rubber treads designed to capture and break down any floor type of dirt and debris, such as dust, pet hair and other small particles etc. Easy to installThe roller replacement for roomba is very easy to replace, just open the snap at the bottom of the robot vacuum cleaner, remove the old roller, install the new rubber roller brush, and press the snap to finish the installation. Extended Service Life Regular cleaning and replacement of parts will improve suction power and extend the life of the robot vacuum cleaner. We recommend replacing the rubber roller brushes every 2 - 4 months so that your robot vacuum cleaner is always working efficiently. Quality ServicePackage includes 2 sets of rubber brush rollers for irobot roomba. If you encounter any quality or other problems after your purchase, please send us a message. We will reply you within 24 hours and provide the best service.