Compatible Models: Roller brushes for iRobot Roomba i1, i1+, i3,i3+, i4, i4+, i5, i5+, i7, i7+, i8+, j5, j5+, j7, j7+, Combo j7+, j8, j8+, j9+ vacuum cleaner. The roller brush can effectively clean dirt, pet hair and dust on the floor. It can clean any floor type and provide you with a clean, fresh air environment. Washable and reusable. It is suggested to replace the rubber brushes every 3-4 months to keep vacuum cleaner running efficiently at all times. Made of high-quality ABS rubber material, which is durable and wear-resistant and suitable for long-term use. Package including: 2 pair roller brush.