Or do you want to show packaging. Just do 1 set and then ask for a test if you think an appropriate price for the packaging size. This is how much the price 15 baht, or 5.
Or you just want to show packaging just one set, then asked the test. Do you think the price is right for the much larger packaging is between 5 or 15 baht.
Or you want to show packaging just 1 series. Then ask the test. You think that the price for this packaging size is much, between the price 5 or 15 baht.