This item is to be added to the cart when you have selected a product with volume rebate, but when the artwork is not the same for all products.
E.g. You are buying 4 printed flags, you selected quanitity 4 and added this to your cart. The volume rebate is automatically validated and calculated in your cart.
However you have 4 different artworks. In this case you have to add 4 units of this item 'quantity of different artwork' to the cart.
In case of questions contact our customer support. +3293377150 or email@example.com