For short-term storage of single-use doses of protein mixtures in powder form (PROTEIN POWDERS, indicated on the package). Although it should be noted, and 30 and 40 gr. Powder will be problematic to fit, or rather, simply-not possible. The width of the lid, which closes with the fixation on the last turn and the width of the capacitor itself, does not always allow opening the container from the first time, especially in the conditions of the gymnasium - narrow, the main drawback in my opinion. And sometimes, especially when the powder gets into the thread of the lid, it is not possible to open the container (L-glutamine container, it was necessary to open with a knife)! If you buy, it is better with a larger volume or a set of containers of different calibers. Ideally, it would not be bad, as a wish to the manufacturer, to produce these kits with twist caps - of different colors (in order not to confuse the contents in the form of a powder, similar consistency and color) and at least two designations on the container itself (5, 10 mg. ). Covers-plastic, the main capacity, as well - of plastic.
