?Matching Model?:Fit For I-Robot Roomba I, E Or J Series E5 (E5134) E6 (E6198) E7 I7(7150) I7+ I7 Plus(7550) I3(3150) I3+(3550) I4 (4150) I4+(4552) I6+(6550) I8+(8550) J6+ (6550) J7 (7150) J7+ (7550). | | ?High Quality Roller Brush?: A Set Of Main Roller Brushes Are Made Of High-Quality Rubber, Which Is Environmentally Friendly, Sturdy And Can Clean The Floor Easily. It Is As Compatible And Works As The Original Part. | | ?Efficient?: This Set Of Rubber Brushes Features A Unique Dual Multi-Surface That Won'T Tangle With Pet Or Human Hair, And The Rubber Brushes Can Be Adjusted To Maintain Constant