Product name: lawn mower accessories Product size: height 7.5 * diameter 11.3cm Product color: black < p>Product material: plastic Durable material: lawn mower accessories with durable plastic knob, mower head, aluminum with left aluminum nut (M10x1.25), you can fix it for a prolonged use Efficient: The replacement spool facilitates the tedious work of manual threading, which is very suitable for lawn mowing and can be optimized to achieve the best precise and precise cutting effect. greater cutting efficiency Size: The nut size is M10*1.25, optimized for extremely high performance COMPATIBILITY: The independent coils of these cutting heads nylon cup fits most types of lawn mowers and is highly compatible