Universal Nut Fixing KitThe universal gearbox blade nut fixing kit fits most six-tooth trimmer trimmer heads. High Quality MaterialMade of metal high quality, wear-resistant, anti-corrosion, anti-rust, sturdy and durable. Easy Installation Simply attach the lawn mower blade to the rotary head with the attachment kit and you can enjoy it. use. Convenient UseUseful and convenient to use. Stable characteristics and high reliability. Package IncludesYou will get 5 different styles of lawn mower working accessories, enough to meet your daily needs.