Compatibility: This product is compatible with Chinese 4500 5200 5800 Chainsaw. Product material: This product is specially designed and made of rubber material, with high service life and not easy to damage. Easy to install: It can be directly replaced without adjustment, with perfect compatibility and high reliability. Product list: Product include a total of 4pcs Oil Tank Cap Seals, which can completely meet your daily use needs and replacement. Note: Please confirm whether the above compatible models and sizes are consistent with your needs., Manufacturer: Be In Your Mind