High Quality Aluminum: The aluminum thread head is made of solid aluminum with nylon thread, which is more wear-resistant and durable, high strength but low vibration to ensure a long service life. High Efficiency: It has low vibration, wear resistance, strength and practical compactness to ensure a long service life, does not make noise that affects others, suitable for most brush cutters. Easy Installation: Easy to install and easy to Easy to use, with automatic thread, the trimmer head will be automatically adjusted by tapping, you can easily replace and use it. Wide Range of Applications: It is suitable for universal trimmer heads of most lawn mowers such as M12, M10 and M8. Suitable for many places, schools, villas, football fields, green spaces, sections, parks, etc.