Replacement ront Wheel Caster Ball Assembly Compatible with All iRobot Roomba 500, 600, 700, 800, 900, e, i, & j Series Robot Vacuums, 2-Pack

Compatible with All iRobot Roomba 500 and 600 Series 510, 520, 521, 530, 531, 532, 533, 534, 535, 536, 537, 540, 541, 545, 550, 551, 552, 555, 560, 561, 562, 563, 564, 565, 566, 570, 571, 572, 573, 577, 580, 581, 585, 587, 589, 590, 595, 599, 606, 610, 611, 612, 614, 615, 616, 618, 619, 620, 621, 625, 627, 630, 635, 637, 640, 643, 645, 650, 651, 652, 655, 660, 665, 667, 670, 671, 675, 676, 677, 680, 681, 685, 690, 691, 692, 693, 694, 695, 696, 697, 698. Compatible with All iRobot Roomba 700, 800, 900 Series 760, 761, 770, 780, 790, 801, 805, 850, 860, 870, 877, 880, 890, 891, 895, 960, 961, 980, 981, 985. Compatible with All iRobot Roomba e, i, j Series e5(5150), e5(5134), e6(6198), i3(3150), i3+(3550), i4(4150), i4+(4552), i6, i6+(6550), i7(7150), i7+(7550), i8, i8+(8550), j7(7150), j7+(7550). To keep your robot running at peak performance, the front caster wheel are recommended to be replaced every 12 months.It is easy to be replaced and installed on your robot vacuums. Shipping with a brown box to prevent from being damaged in transit.