- Perfect Fit Roller Brush for iRobot Roomba Replacement parts compatible with Roomba i series and other listed models: i7 (7150), i7+ (7550), i1+ (1552), i4+ (4550, 4552), i3+ (3550), i6+ (6550), i8+ (8550); E series E5 (E5134), E6 (E6198), E7; J Series j7+ (7550). These accessories perform as well as the original parts. - Highly Efficient Rubber Brush Includes two premium quality multi-surface rubber brushes designed to lift dirt and to sweep debris efficiently. - Easy to Replace the Roller Brush Regular cleaning and replacement of these parts helps maintain suction and overall performance, extending the life of the Roomba. For best results, replace the multi-surface rubber brushes every 6 months. - Valuable Package Replacement Parts Includes two sets of dual multi-surface rubber brushes (four brushes total) for extended replacement cycles. - Applications and practical use - For households with pets or heavy foot traffic, keep Roomba cleaning performance high by using the rubber brushes to remove hair and dirt from carpets and hard floors. - In tight spaces such as under furniture, beds, and along baseboards, the dual brushes help improve debris pickup and maintain suction. - On a routine maintenance schedule, replace every 6 months to preserve cleaning efficiency across the compatible Roomba models listed.