Compatibility: This product is compatible with most chainsaws. Please confirm the dimensions shown in the image above to ensure they match your needs. Designed for Chainsaws: This tension adjustment nut is designed to perfectly match your chainsaw, providing precise tension adjustment for optimal cutting performance. Material: This specially designed metal material ensures a long lifespan and is resistant to damage. Easy Installation: Directly replaceable without adjustment, ensuring perfect compatibility and high reliability. Product include a total of 2Sets 68mm Chainsaw Screw Nut Set, which can completely meet your daily use needs and replacement., Manufacturer: EMSea