Item Type: 41mm Cylinder Piston Kit Product Material: Aluminium Alloy Weight: Approx. 497g / 17.5oz Usage Diameter: Approx. 41mm / 1.6in Application: Chainsaw1Aluminum Alloy Material: The cylinder piston kit is made of aluminum alloy material, which is not easily damaged and has high hardness. It is a good companion for you when working. 2Easy to Install: Cylinder piston kit for CS 4200 is very easy to install and use, and after your regular operations, it will bring you the desired effect to improve your efficiency. 3Corrosion Prevention: The cylinder piston kit for CS4000 is corrosion resistant and has good stability under unconventional conditions, making it suitable for long term use. 4High Hardness: The high hardness is the most basic guarantee for this cylinder piston assembly, which can increase its lifespan and provide you with sufficient reliability. 5Useful Accessories: If your previous accessories are damaged or old, then this cylinder piston kit is very suitable for you to directly replace the damaged or old ones. 1 x Cylinder 6 x Piston Component