The cards weren't that thin. They didn't move at all when I did the calligraphy with them, but I wrote slowly, keeping my fingertips on the lines to keep them from lifting. The pens were dry at first but I used them a bit and the ink started bleeding. The envelope it came with was completely wrinkled and crumpled, so I used it to practice with pencils and stencils. However, everything came in the nice plastic bag I kept the stencils in. I thought the product was as advertised. It's not the best option, but it does what it's supposed to do as an affordable option.
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