Feature: 1. The cylinder piston seal assembly can be highly compatible with the original equipment. 2. It is specially designed for Jonsered CS 2171 2163 2165 2063 2065 2071. 3. Selected high hardness aluminum alloy materials, strong and durable, wear resistant. 4. Stable performance, can effectively improve the working efficiency of the chainsaw. 5. Easy to install and disassemble, it is a perfect substitute for broken parts. Specifipetsion: Condition: 100% Brand New Item Type: Cylinder Piston Assembly Material: Aluminum Alloy Weight: Approx. 885g / 31.2oz Cylinder Diameter: Approx. 50mm / 2in Applipetsion: for Jonsered CS Chainsaw 2171 2163 2165 2063 2065 2071 Package List: 1 Set x Cylinder Piston Seal Set (12pcs) Note: 1. Please allow 0- error 1 inch due to manual measurement. Thank you for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as the standard.