High quality and great durability Replacement left and right drive wheels for the damaged and non-working one Help repair your sweeping robot and make it work properly Very well matched to the equipment Types: Left Wheel + Right Wheel (L+R) Applicable model: for G1 MJSTG1 Color: as shown Material: Plastic Package Contents: 1 pair * wheel set (L+R) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.