High quality sweeping robot universal wheel replacement accessories. High quality sweeping robot universal wheel replacement accessories. Suitable for models of the for S, Q and E series such as the S4/S4 Max, S5/S5 Max, S6/S6 Pure/S6 MaxV, S7/S7 MaxV/S7 MaxV Plus/S7 MaxV Ultra, Q5/Q5+, /+/ Max/ Max+, E4/E5 and many others. Omni-directional front castor wheels are made from high-quality material, anti-broke and available for long service life. Easy replacement snaps in place. Recommended to be replaced every 2-3 months to keep your vacuum cleaning robot working efficiency. What You Can Get - 2 x replacement swivel front caster wheels. Colour:As Shown Material:Plastic Package Contents: 2x Wheels Only the above package content, other products are not included. Note: Light reflection 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.