Enhance the performance of your string trimmer with the 2-pack of Genuine Husqvarna 531004266 Knobs that come absolutely free with the lot of 2. These high-quality knobs are designed to fit perfectly with your Husqvarna trimmer head nut, ensuring efficient trimming and a flawless gardening experience. Crafted with premium plastic material, these blue-colored knobs are compatible with 2-stroke gasoline-powered string trimmers, and require no assembly. Manufactured in Sweden, these knobs are a must-have for all gardening enthusiasts looking for a reliable and durable product.