Item Type: Air Filter Material: ABS Package List 2 x Air Filter 1 x Spark Plug 1COMPATIBLE MODEL: This air filter is suitable for MS210 MS230 MS250 021 023 025 chainsaw, useful and practical 21123 120 1613 OEM: Replacement part number is 1123 120 1613, meet can be used, realize perfect fit with your devices 3OXIDATIVE RESISTANT AND CORROSION RESISTANT ABS: Air filter is made of ABS material, oxidative resistant and corrosion resistant to increase service life 4IMPACT AND SCRATCH RESISTANT: Air filter replacement possess impact resistance, scratch resistance, environmentally friendly 5REPLACE OLD OR BROKEN ONES: You can replace your old or broken chinsaw ignition coil directly use this product, very practical