Specification: Condition: 100% Brand New Material: ABS Diameter: approx. 8 cm Height: approx. 4.3 cm. Approximate weight 54 g / 1.9 ounces. Features: For Stihl MS241, MS251, MS261, MS271, MS291 Package list: 1 x air filter. Features Applicable Model The air filter kit is a nice replacement compatible with Stihl chainsaw MS241 MS251 MS261 MS271 MS291. Please confirm whether the product fits your chainsaw before purchasing. Premium Sponge Material The air filter of the chainsaw is made of sponge material and can effectively filter impurities and dust to ensure the normal operation of the motor. Which has a long service life. Easy Installation You don't need to use other complicated tools, you can directly install the trimmer air filter without modification, convenient and easy for you to use. Strict Quality Control The strimmer accessories are manufactured to standard Specifications and in strict accordance with factory quality control. So you don't have to worry about product problems. Service Guarantee If you have any questions about the product or are unsatisfactory, you can contact our customer service at any time. Our team will reply you as soon as possible.