ZenCart Version 1.3.9
new install, no add-ons
have purchased and read the manual. have searched the forums.

Am searching for a simple way to post various price options for food-stuffs/dry goods such as grain: sold in 1 lb measures or in 10, 20, 25 or 50 lb measures, each quantity having its own arbitrary price-per-unit, not as graduated quantity or percentage discounts, so that it would look something like:

Rice:
1 lb/ $1.75 (any number of lbs to be selected);
10 lbs/ $17.00 (any number of 10 lb sacks to be selected)
25 lbs/ $33.00 (any number of 25 lb sacks to be selected)
50 lbs/ $60.00 (any number of 50 lb sacks to be selected)

or vegetable oil by the pint, quart, liter, half gallon, or gallon, etc

I have been unable to discern a method of setting such attributes in Zencart.
Your suggestions will be appreciated.