The kit includes the following parts: 3 x Filters for Roomba, 3 x Side Brushes for Roomba 1 x Flexible Beater Brush 1 x Flexible Beater Brush Spare parts compatible with all Roomba 600 series: for 600 605 610 614 616 620 621 625 630 635 640 650 660 665 670 671 676 680 681 690 691 695 etc. Tips: 1. Clean the Roomba brushes and filters to ensure your home robot continues to operate at optimal performance. Filters should be replaced every 1 to 3 days. 2 months for best results. 2. It is important to keep the brush functioning normally. Clean the center and side brushes. Perform every 1 to 2 cleaning cycles and replace if damaged or broken. 3 Pcs x Filters for Roomba 1. Easy to install and durable, keep your home clean. 2. The filters need to be replaced every 2 to 3 days. 3 months. Ensure your vacuum cleaners perform at their best. 1 Pcs x Flexible Whisk Brush < p>1. Convenient: You may have more time to clean your house. 2. Material: The replacement brush made of medium-hard material