Perfect Replacement Kit: This accessory kit is suitable for Romba 600 610 620 650 675 677 692 671 694 691 614 615 635 676 670 690 series and 536 551 552 564 585 589 595 series robot vacuum cleaners. Please check your vacuum cleaner model and part. Replacement frequency: It is recommended to replace the spare part every 2 to 4 months to keep your robot clean and with high performance. Professional: Complementary accessory kit from professional manufacturers, made of high-quality and environmentally friendly materials. Material: plastic Color: As shown Package contents: 1 * Front wheel 1 pair * Main brush 3 * Filter 6 * Side brush 6 * Screws 3 * Cleaning tools 1 * Screwdriver Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.