Wide compatibility: This replacement drive wheel module is a standard spare part for robotic vacuum cleaners; fits multiple robot vacuum models for regular wheel assembly replacement Support moving structure: It acts as the walking supporting component to drive the robot to travel and steer across indoor floor surfaces during automatic cleaning cycles Matching built-in wiring port: Internal wire interface aligns with the robot’s reserved circuit position to maintain normal signal transmission during operation Tool-free assembly design: Corresponding buckle structure matches the robot’s wheel compartment; users finish disassembly and installation without extra maintenance tools Device mobility recovery: It replaces stuck, detached or broken worn wheels to restore the normal moving and navigating function of cleaning equipment