The replacement cutter head features a special double-line design for mowing and trimming. The nylon line self-adjusts by tapping the cutter head on the ground. Offers excellent performance, delivering consistent results even on thick brush and brambles. Easy to use and compatible with Stihl Autocut C26-2 models for use with 2.4 mm line. Simple installation and efficient operation. Durable construction for long-term use. Premium quality replacement cutting head designed for Stihl Autocut C26-2 FS 55/56/70/94/91/111/131/240. Double-line design enhances mowing and thinning efficiency. Automatic line adjustment via ground tap. Constructed from high-quality plastic. Specifications: Condition: New Material: Plastic Color: As shown Diameter: Approx. 15 cm Bottom Thread Hole Size: 10 x 1.0 mm, Left Hand Thread, Right Hand Shank Package Includes: 1 x Cutting Head