Bigboy is available in four teeth sizes/configurations (tpi - teeth per inch): 5.5 tpi extra large/coarse (pruning, green wood), 6 tpi - large/coarse (pruning, green wood), 8.5 tpi - medium (soft wood), and 11 tpi - fine (hard wood, bamboo).Each bigboy has a color-coded handle associated with the teeth configuration: yellow extra large, red - large teeth, black - medium teeth, and blue - fine teeth.