The Plastic Spoked Wheel with your lawn mower to enhance its performance. with this excellent versatility this accessory is perfect to keep your mower is top working condition and to enhance your gardening experience. Features . Product Type - Spoked Wheel. 0.5 in. ball bearing and 1.75 in. hub. This accessory is perfect to keep your mower is top working condition.. Material - Plastic. Size - 12 in.