Features： 1、Efficient Air Filtration: This air filter is designed to effectively filter air, providing clean and dust free air to the engine, restoring engine performance with high filtration efficiency. 2、High Performance: The air filter offers performance and can effectively prolong the lifespan of your machine. It is designed to ly match your machine for stable performance. 3、Durability: Made from filter cotton material, the air filter is strong, durable, and wearproof, allowing for a long service life. 4、10pcs Dual Layer Air Filters: With 10 dual layer air filters included in the pack, it provides the convenience of immediate replacement, ensuring efficient operation of your machine at all times. 5、Easy Installation: Air filter fits ly for MS180 MS170 chainsaw . Simply replace the old filter with this new one and enjoy improved engine performance. Specification： Item Type: Chainsaw Air Filter Material: Cotton Weight: Approx. 41g / 1.4oz Product Size: Approx. 87x63mm / 3.4x2.5in Package List： 10 x Chainsaw Air Filter