Replacement brush for iRobot Roomba i7 i7+ i7 Plus i3 i3+ i4 i4+ i6 i6+ i8 i8+ j7 j7+ E5 E6 E7 vacuum cleaner. This brush for Roomba i7 is made of high quality rubber, soft and elastic for better contact with the floor or carpet. This kit works just like the original, with a precise fit and easy installation. This i7 plus roller brush attachment is suitable for all types of flat floors. The dual-shaped multi-sided roller brush is more effective at capturing dust, debris, pet hair, etc. The i7's unique multi-surface rubber brush won't tangle with pet hair. The iRobot i7 brush adjusts and flexes to maintain constant contact with carpets and hard floors. Set of 4 iRobot i7 accessory roller brushes. (Note: There may be a little noise when the scroll wheel is used for the first time, but it will disappear after a period of use.)