
【Compatible】 Replaces STIHL 017 018 021 023 025 MS170 MS180 MS210 MS230 chainsaw. 【delivery content】Sprocket cover × 1, chain tensioner × 1, nut × 2 and bolt × 2. Replacing parts is quick and easy. 【Effective protection】The sprocket cover can keep the sprocket clean, protect it from damage and ensure smooth running of the chainsaw. 【Sustainable Design】 Made of strong ABS plastic, durable for long term use. If you encounter any problem, please contact us, we promise 100% satisfactory solution.