SHP-ZONE 1 x Rubber Bumper Guard Black Pad & 2 x Aero Vac Filter & 1 x Side Brush 3-Armed for iRobot Roomba 500 600 Series 536 550 551 552 564 620 630 650 660 Vacuum Cleaning Robots 2 Aero Vac Filters 1 3-Armed Side Brushes + 1 Bumper Filters maintain optimal cleaning performance. Filters reduce infiltration of dust, pollen and other allergens. The rubber strip that sticks to your front bumper to help prevent damage from running into furniture, etc. Compatible with: iRobot Roomba 500 600 Series Vacuum Cleaning Robots Roomba 536, Roomba550, Roomba 551, Roomba 552, Roomba 564( only compatible with AeroVac Bins)