Item Type: Chainsaw Accessory Material: Aluminum Alloy Weight: Approx. 690g / 24.3oz Fitment: Fit for Stihl MS261 MS261C Chainsaw Diameter: Approx. 44.7mm / 1.8in How to Use: Fit for Stihl MS261 MS261 MS261C chain saw 1Garden cylinder piston kit replacement, fit for Stihl MS261 MS261C chainsaw. 2High?quality aluminum alloy material, which is durable and wear?resistant. 3Easy to install and disassemble, can directly replace old or damaged parts. 4Chain saw accessories, stable performance, can improve work efficiency. 5It fits with the original product and can perfectly fit your garden chain saw.1. Please allow 0?1 inch error due to manual measurement. Thanks 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 standard. 1 x Cylinder 1 x Piston Set (6Pcs)