Fit Model: Fit for iRobot Roomba i7+(7550)/i7 i3+(3550) i4+(4550 4552) i6+(6550) i8+(8550) E5(5150) E6(6198) j7 i5+j5+ I & E & J Series Vacuum Cleaner Durable Material: These replacement parts are made of high quality PC, Compatible and work just like the original one, The side brush will not scratch the floor and furniture, greatly ensure the safety and cleaning effect during the process of the use Easy to Maintain: These relacement vacuum parts can washable and reusable, It is suggested to replace the replacement parts every 2-4 months to keep your Robotic cleaner working with high-performance. If the side brushes are bent or curled due to shipping, please recover them by simply soaking them in warm water for several minutes Valuable Package: Includes 8 Pack Side Brushes Customer Service: If you meet any quality or other problems after the purchase we will solve it in 24 hours