Keep the performance of your irobot vacuum at its best by replacing the filters and brushes and cleaning tools with the 4359688 kit you can do just that with 3 aero vac filters 1 bristle brush 1 beater brush 1 side brush and a brush cleaning tool making this the service kit youll need this kit will give you one years supply of accessories giving the same performance as the you would of got straight from the box brand new