HIFROM(TM 2PCS BAR Nuts for Stihl Chainsaw 017 018 MS170 MS180 ms210 ms230 ms250 New AFTERMARKET 1. New high quality aftermaket replacement BAR NUTS 2. Fit for stihl chainsaw models 017 018 MS170 MS180 ms210 ms230 ms250 3. This is non original aftermarket parts, please check the pictures for compatibility before buy it . 4. Package includes: 2 X BAR NUTS 5. HIFROM focus on provide high quality products at fair price, if you unsatisfy with our product, you can return to our USA warehouse, no risk.