Product DescriptionPack 2 tires for all series TIRES Wheels for Series 500, 600, 700, 800 and 900 (Pack 2 Units) Manufactured; in Spain Non-slip, great grip and easy assembly. Replacement compatible with all Roomba models of the 500, 600, 700, 800 and 900 series, full range of models. Compatible: 500 505 510 520 521 530 531 532 533 534 535 536 540 545 550 552 555 560 561 562 563 564 565 570 580 581 585 587 589 595 595 599 600 605 610 615 616 621 621 631 632 681 700 720 750 760 765 770 772 774 775 776 780 782 785 786 800 850 860 865 866 870 871 875 876 880 886 890 900 960 965 966 980 E5 I7 I7+ S9 S9 (Includes PET variants) two rubber tires compatible with the vacuum robot Product manufactured; in Spain with the highest quality ensured.FEATURES -Non-slip, the wheel will not skid on the floor of your house, this will prevent robot breakdowns and make cleaning more efficient and resistant to damage. wear. -Manufactured to 100% quality materials, it can withstand harsh weather. all kinds of shocks. Tests carried out by experts, give us the confidence of the durability, the elasticity; and high adhesion on all surfaces (terrazzo, parquet, parquet, smooth and rough floors). -Easy to use assemble, please follow the instructions mentioned in the below. We are going to specify the 4 steps to follow. follow to remove the wheels from your iRobot robot vacuum cleaner.ASSEMBLYSTEP 1 Remove the wheel from the robot vacuum cleaner, unscrew the lower cover then the wheel, once the two wheels removed, we go to step 2.STEP 2 Remove the old tire of the wheel module. Then with a screwdriver flat head or similar object, insert it between the rubber at the bottom. remove and the plastic, then pull the tire and the points that join it to the tire. the wheel come off. OPTIONAL: With a blow dryer or stripper, apply heat to the tire area (ATTENTION ON START), this will expand the rubber and make it easier to remove. remove.STEP 3 Position the tire over the diameter of the wheel and press down to seat the tire snugly. instead of the rubber removed.STEP 4 Put the wheels back on the robot. Once the tires have been changed, mount them by performing the reverse procedure of step 1 and your is ready to go. roll to; new.