"NICE MATERIAL Our labels are made of high quality material that won't break easily. The thank you cards easily absorb fountain pen ink. These blank labels have nice rounded corners and are high quality, easy to write and hold. Writable both sides You can leave what you want to express on both sides of the cardboard. Note: The data is all manually measured, please allow an error of 1-3cm. Due to the difference in light and display, there may be a certain color difference. the actual item received shall prevail.