The carburetor is made of metal, high hardness and good strength, providing reliable performance and long service life.Bore approx.10.5mm / 0.4in.Mounting hole approx.31mm / 1.2in. Best ReplacementThe carburetor is the ideal replacement for the broken carburetor of grass trimmer and lawn mower. Wide applicationThe carburetor can be widely used in agriculture, fishing, animal husbandry, aquaculture, forestry. Easy to InstallThe carburetor is easy to use and install, which is suitable for 33CC/36CC engine mast chainsaw. NotePlease note that the new type and old type of this product will be sent randomly, and make sure you do not mind before ordering.Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.