High effective with high durability Replacement energy wheel for the damaged, non-working one Help to fix your robotic sweeper, and make it paintings correctly Highly tournament with the equipment Applicable Model:for Xiaomi Mijia E10 / B112 / E12 Type:C:1Pair Left & Right Wheel Colour:As Shown Material:Plastic Package Contents: 1pair * wheel assembly Only the above package content, different merchandise aren't included. Note: Light reflection and different reveals can cause the colour of the object in the picture slightly varied from the real thing. The dimension allowed error is +/- 1-3cm.