They are quite large, with pleats that have rounded and flat sections along the top and bottom. There are four photos that show the side of one shade, where there are some dark scuffs or discolored areas.
The second shade has one stain (small dot) in the middle and a pair of small faint stains/scuffs. Both shades have some loose threads along the top and bottom borders. I vacuumed the exterior, but there is still dust in the hidden part of the pleats. A can of compressed air could help clean that out. Both shades have yellowing on the inside, one more than the other.