With the FloTool Gas and Chemical MixMizer you can measure and mix only the amount of chemical that is needed in order to avoid waste and other accidents. The multiple ratio s scales takes the guesswork out of mixing oil and gas so that you get a more precise outcome. It is made of a sturdy polypropylene material and has a capacity to hold up to 2 oz. The mixmizer injector has ratios for the quart pint liter and half liter so that you will have anything you may need readily available. The syringe is clear so you can properly measure and see that you are putting the right amount of liquid into your mixture.