Get them opened up and check them as carefully as you can. I think you have 30 days on eBay to raise an Item Not As Described claim, which sellers will be proactive about supporting or eBay will step in to assist you. Beyond this, it becomes harder to get a return.
I'm not suggesting anything is wrong with the wings or the majority of sellers, but just to check to help protect yourself and make sure you've got what you think you were getting and a mistake hasn't been made.