Newly designed black front caster wheel for Roomba Compatible models include e5 e6 i1 i3 i4 i5 i6 i7 i7+ i8 J5 J7 J9 Authentic Caster Wheel Made by Roomba 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) 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, 760, 761, 770, 780, 790, 801, 805, 850, 860, 870, 877, 880, 890, 891, 895, 960, 961, 980, 981, Authentic Caster that works with Roombas model 500 and above (not S9). 614 620 650 655 670 675 680 690 692 695 860 870 880 890 891 895 770 771 760 761 780 790 960 980 985 e5 e6 i3 i4 i6 i7 i8. Does not work with model s9 4624869