Liangheng Vacuum Maintenance Kit

[Applicable model]-Fit for iRobot Roomba 600 Series 694 692 691 690 685 681 680 677 675 671 670 665 660 652 650 640 635 630 625 621 620 616 615 614 610 606 605 and 700 Series 790 780 770 760 Vacuum Cleaner.|[Package Include]-4 Sets Bristle and Beater Brush.|[Easy to install]-Easy to replace and install, snap in place, quick and easy daily replacement without the need for tools.|[Usage suggestions]-To keep sweeping robot running at best performance,we recommend replacing parts every 2-3 months.|[High quality materials]-Made of environmentally friendly materials, it is wear-resistant and sturdy, effectively helping robots clean various floors better.