Industry has thus far failed to recreate the elegance and complexity in nature's dragonfly wings. 

This $7 listing purchases 4 damaged dragonfly specimens. These four dragonflies have damage to their bodies and perhaps minor damage to a wing or two on each specimen. So, you get sixteen wings, thoraxes and usually heads. Usually the damage to the specimens sold in this listing is restricted mainly to the long, thin (breakable) abdomen.

Wings are from dragonflies specifically, not smaller damselflies. Wings are mostly clear but may contain pigmentation in the form of natural spots or bands depending on the species included which may or may not be identified.