Features: Works Great: These replacement part are made of plastic, Compatible-and work just like the original one, The side brush will not scratch the floor and furniture, greatly ensure the safety and cleaning effect during the process of the use. Tips: If the side brushes are bent or curled due to shipping, please recover them by simply soaking them in warm water for several minutes, It will not affect the quality and performance. Widely Application: The cleaning head works great on many types of floors, such as marble, smooth tile, laminate, especially for short-pile carpet. The main brush and side brush deeply removes dirt from your floors, and ensures the removal of dust and crumbs from hard and hardwood floors in your home. Our replacement-part have been tested on compatible-machines to ensure the appropriate functioning and machine protection. Specifications: Material:Plastic Compatible-with irobot Roomba i3/i3+/i4/i4+/16/i7/i7+/E5/E6/E7 Package Includes: Package 1: 1x Main Brush; 1x Filter; 1x Side Brush Package 2:1x Main Brush; 4x Filter; 4x Side Brush Package 3:1x Main Brush; 3x Filter; 3x Side Brush; 3x Screw Package 4:2x Main Brush; 8x Filter; 8x Side Brush note: Please allow 1-2cm errors due to manual measurement,Please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.