2-Pack Replacement Parts Front Wheel/Caster for Roborock S4 S5 S6 S7 E4 E20 E…
2-Pack Replacement Parts Front Wheel/Caster for Roborock S4 S5 S6 S7 E4 E20 E…
（NOT for S5 Max）. Feature – The front wheel castor for Roborock is designed with bearing that eliminates the wheel falling out from wear.