I need some scoopers for home, but do not see the volume listed with these from Zeroll, only the dimensions. “Delivers accurate portions” is a great description, even better would be if we knew what that portion was for each scooper, please? “Medium”, “Small”, and “IceCream” does not tell me how many ounces in each scoop. Is it 1/4 cup? 1/2 cup? 2 tablespoons?