General description The Universal Aluminum Brush Cutter Head is designed for efficient lawn maintenance. This double line nylon spool is made from high-quality materials, ensuring durability and a longer service life. The trimmer head features a double-thread design, making it versatile for trimming and thinning in various garden settings, including slopes and corners. Technical specifications Material: Aluminum housing and double nylon line Trimmer head size: 45 x 59 mm Wire diameter: 2.4 mm Aperture: 25 mm Amount: 1 Line type: Double nylon line Compatibility and accessories Compatible with all common left-hand thread brush cutters and electric brush cutters, including FSA56 Sthil, FS40 Sthil, Kawasaki, Ryobi RK 34, and TH 34. Package includes: 1 x Aluminum line head with screw 4 x 2.4 mm (square) thread 1 x Hexagonal wrench 2 x Washers Installation Easy to assemble with provided installation tools and parts. Installation steps are straightforward, allowing for self-assembly to save