HIFROM(TM Replace Carburetor Carb fits for Stihl FS120,FS200,FS250,FS300,FS350 Carburetor replaces C1Q-S51A,B,C by 1. New high quality aftermaket replacement parts 2. Fit for models FS120 FS200 FS250 Trimmer 3. This is the Non original aftermarket part, please check the pictures and size before buy it. 4. Package included: 1PC Carburetor Carb 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.