Compatibility - This replacement accessory kit is compatible with iRobot Roomba 600 610 614 620 625 630 635 640 645 650 655 660 665 670 671 680 690 691. For best results, filters should be replaced every 2 to 3 months. Effective Cleaning - Keep your home tidy, remove hair, dirt, or particles, and help purify the air of dust, allergens, and other particles. The cleaning brushes included in the kit are very practical. High Quality – Made from environmentally friendly and high-strength materials. It undergoes rigorous testing for compatibility and durability. Easy installation and good durability. What You Get – Complete maintenance kit, each package includes a set of 3 filters, 4 side brushes and 4 screws, 1 set of bristle brushes and flexible beater brushes, and 1 set of cleaning equipment. Like the originals – comparable to the original parts. Excellent value for money. Ideal for replacing worn parts.