Imagine shopping this way...
“I want some butter, eggs, a bottle of wine, and some bread.”
We have 30 varieties of butter ‘products’. Do you want a dozen eggs, half a dozen, a crate. Do you want small, medium, or large? We have 300 various bottles of wine. Please specify the exact brand and name. We have white bread, wheat bread, whole wheat bread, low-gluten bread, blah,blah,blah,blah.
Yeah, this will really work.
Being as this is Amazon, you might search out the products from your computer and pick up your order at the store.