It works like variant plug-in but this plug-in shows checkboxes and you can have as many of them as you want.

You can also add image for each additive and set each checkbox to be checked by default or not.

You can set up number of free additives or value of additives for free, before system continues charging for additives.

Administration is very easy. Just type additives with mark-up price separated by commas and thats it.

You can choose which price to increase, base or sales price. You can set some other layout options.

Plug-in works on Joomla 2.5 or 3.x with Virtuemart 2.0 or 2.6 or 3.x!