1Cylinder is manuafctured by die-cast aluminum with guaranteed quality for practicality. 2Aluminum piston is not easy to damage, which can be installed in an easy way. Also it supports wide application. 3Equipped with good wear resistance and long service life, such cylinder and piston of precision parts is cast by special materials. 4General cylinder piston assembly and complete set accessories are fit for Husqvarna 353 gasoline chain saw. 5Such cylinder kits are with compact structure and high hardness, and they are also with exquisite craftsman.Item Type: Cylinder Cylinder Material: Die-cast aluminum Piston Material: Aluminum Cylindrical Pin Material: Alloy steel Piston Ring Material: Ductile iron Circlip Material: 65Mn Cylinder Coating: Chrome plating Piston Diameter: Approx. 45mm / 1.77in Specifications: For Husqvarna 353 cylinder assembly1 x Cylinder1 x Piston1 x Cylindrical Pin2 x Piston Ring2 x Circlip The diameter of the piston is 45mm, please pay attention to the reference before buying.