Improve cleaning effectiveness: Replacing the vacuum cleaner brush roller can better conform to the floor, clean more thoroughly, reduce missed spots, and make the cleaning results significantly better. Reduce operational stuttering: Replacing the main brush of the robot vacuum rotates more smoothly, reducing body jams, making the robot work more stably and continuously. Enhance cleaning ability: Replacing the robot side brush with one that has proper elasticity and shape can reach into gaps and corners, cleaning small debris that is typically difficult to reach. Reduce operational load: Replacing the vacuum cleaner brush roller with a smoothly rotating one reduces resistance, making the motor work more easily and resulting in a quieter and more comfortable operation. Compatible for Tineco，Y3