PERFECT COMPATIBLE -The replacement front castor wheel is compatible with all irobot roomba i7 i7+plus E5 E6 E7 Models and 500 600 700 800 900 Series 530 550 595 614 620 630 650 655 660 665 690 760 770 780 790 805 860 870 880 890 960 980 Vacuum CleanerINNOVATIVE DESIGN - Enhanced design with bearing eliminates the wheel falling out from wear. Bearings allow the wheel to spin easier and reduces the amount of debris that breaks down functionality over timeEASY INSTALLATION - Easy replacement snaps in place - no tools required! Replaces old broken, loose, worn, or missing front wheel caster.Material: plasticcolour: As shownPackage Contents:3 x wheels1 x clean brushOnly 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 +/- 1-3cm.