SaferCCTV(TM)Chain Brake Handle Lever Hand Guard for Stihl 017 018 MS170 MS180 Chainsaw Replacement Part# 1130 792 9100 1. Unique service can make you rest assured to buy--(1)60-days money-back guarantee, 12 month warranty. (2) Professional sellers, and professional guidance. (3)Provide professional use tutorials. (4) Often give away free tool products (because we clean stock). Please contact us if you need any of the above services 2. Replacement Part # 1130 792 9100 3. Fit for stihl models 017 018 MS170 MS180 Chainsaw 4. Please check the pictures and size carefully, and compare it with your old igntion coil, make sure it's the correct one before you buy it 5. Professional after-sales service-100% brand new and high quality