Header ID.. looking for an edumacated guess.

Not sure what these are, they were in the trunk of my Cuda when I bought it. I don't see any markings anywhere. Not a big deal if I don't know what they are, but I plan on trying them as my Hookers look pretty ratty.. be awhile before I can try them out. Just be nice to say what they are instead of 'I have no damn idea', lol