Package Contents: 1 x Set of Bristle and Rubber Rollers; 4 x Aerodynamic Filters; 4 x Side Brushes; 3 x Screws; 2 x Dust and Hair Removal Tools This replacement accessory set is only compatible with models 645, 655, 675, 676, 677, 692, 694, 600, 671, 697, 698, 650, 651, 660, 690, 614, 615, 621. High Quality: Made of high-strength and environmentally friendly materials. It undergoes rigorous compatibility and durability testing. Easy to install and ensures good durability. OEM Quality: Comparable to OEM parts. Excellent value for money. Perfect for replacing worn parts. [Recommended Use] It is recommended to replace the accessories every 3 to 6 months to maintain the effectiveness of the vacuum cleaner, obtain optimal results and always keep the room clean.