1CYLINDER SET: Includes cylinder x 1, piston x 1, piston ring x 1, piston pin x 1, piston circlip x 2, spark plug x 1, carburetor x 1, paper gasket x 1, relief valve x 1, needle bearing x red accessory x crude oil filter x air filter x2HIGH COMPATIBILITY: Fit for HUSQVARNA 359 357 357XP 537 chainsaw, with good compatibility, perfect match with the original equipment.3CHAINSAW ACCESSORY: It can directly replace old or damaged parts, effectively prolonging service life of machine and improving work efficiency.4HIGH QUALITY MATERIAL: High quality aluminum material is used, strong and durable, resistant to abrasion, not easily deformed or damaged.5EASY INSTALLATION: Stable performance, just install it on the corresponding machine according to the applicable model specifications.