Because good quality reeds are quite expensive, it is prudent to try to keep them in working order as long as possible

Cup doesn't do what it supposed to and not a good quality

First, you can’t quite see in the picture, but the cup has markings on it for the volume of water, with markings at 30 mL, 45 mL, and 60 mL, as well as at 1 oz, 1.5 oz, and 2 oz