If you have an expandable gusset at the sides of the bag, you will need to insert a flat surface under the top layer of the bag to get a good result. A piece of acrylic or a magazine works well.
We can supply a sheet of A4 size washable rubber for $10.00 a sheet.
To order or enquire, please email through a good quality logo (not from a webpage as the quality is not good enough) and the size you require.
We will then email back a proof and price..
Our email address is email@example.com