Features: 1. Fit for STIHL FS38 FS45 FS46 FS55 HS45 FC55 HL45 FS55R KM55R. 2. Air filter replacement, which is highly compatible with the original product. 3. Lawn mower replacement parts, effectively improve mowing efficiency. 4. Easy to install and replace, it is an excellent substitute for old or damaged parts. 5. Exquisite workmanship, stable performance and long service life. Specification: Item Type: Air Filter Material: Cotton Weight: Approx. 32g / 1.1oz Uses: Trimmers, Lawn Mowers Fitment: Fit for STIHL FS38 FS45 FS46 FS55 HS45 FC55 HL45 FS55R KM55R Package List: 9 x Air Filter Features Precise Fit for STIHL Models: Compatible with FS38, FS45, FS46, FS55, HS45, FC55, HL45, FS55R, and KM55R, ensuring a perfect match for your STIHL equipment. Enhanced Air Filtration: High-quality air filter replacement for improved performance and longevity, providing clean air flow to protect your engine from dust, debris, and contaminants. Optimize Mowing Efficiency: By replacing your lawn mower's air filter, you can enhance its performance, allowing for smoother operation and more efficient grass cutting. Easy Installation and Replacement: Designed for hassle-free installation, this air filter replacement can be easily installed or replaced, saving you time and effort in maintaining your lawn mower. Durable and Reliable: Crafted with precision and built to last, this air filter replacement Features excellent workmanship, ensuring stable performance and a long service life for your lawn mower.