✅ Upgraded Replacement Front Wheel ✅ The main front wheel adopts upgraded cross screws, which will not fall off or create gaps. ✅ HIGH QUALITY PRODUCT. Suitable for irobot Roomba sweeping robot accessories wheel guide wheel universal wheel universal front wheel Size: 5*4.5*cm Weight: 0.2kg Quantity : 2 pieces Color: Black Functional cleaning Item number H20190662 Use environment household Applicable area 51-100 square meters Model series 800/700/600/500 Product category Consumables Power cord length 2 Rated voltage 220 Power 24 Control mode portable