This product is NOT cardstock weight and the product nor the website specifies the weight of the paper, which is paper thin and worthless for card making. I will use the envelopes. But the "cards" are worthless except as scrap.
I order these cards and envelopes - they are a great size - sometimes I cut them down a bit to make the area smaller - the only problem I have with these cards is that I have to re-crease every one so they fold correctly. The quality is ok -- but since I am covering the area with paper and stamping they serve the purpose.