Feature: 1. Due to compact structure and high hardness, this cylinder assembly is entitled with high performance according to strict rule. 2. Fit for Stihl 210 gasoline chain saw, exquisite craftsmanship entitles general cylinder piston assembly and complete set accessories with high performance. 3. Denpends on special materials with long service life, cylinder and piston kits are with good wear resistance. 4. Meanwhile, such a chainsaw cylinder is not easy to damage so that you can use for a long time. 5. Guaranteed quality of the chainsaw piston can be used with confidence, and it is practical. Specification: 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. 40mm \/ 1.57in Specifications: For Stihl 210 cylinder assembly. Package List: 1 x Cylinder 1 x Piston 1 x Cylindrical Pin2 x Piston Ring2 x Circlip Note: The diameter of the piston is 40 mm, please pay attention to the reference before buying.