I can help out with the medium flat rate box with the price... the price on the box is to send it not to buy it. Ask your post office person if it is the right one but they are free. I get them from shipments coming in and reuse them if they are clean and in good shape. The price is just so you kn0ow how much it is to send,,, that is why the name flat rate (under a weight requirement). My box is full.
August 28, 2016 - 8th annual art Get Together, Hamburg NY