Selling Replica Items on eBay?

OK, so iv got a cousin who says he's got a way to potentially make a lot of cash, with a small investment. There's some website he found that sells replicated items, from headphones to iphone cases to watches, they sell it. Its like an eBay for replicas. The items look exactly like the real products, right down to the packaging. He says he plans on buying several items and then placing them for sale on eBay. I'm not sure if its legal for him to this, is it? I mean, even if he doesn't say authentic items, is it steal illegal? If so, what are the legal ramifications of doing so?

It's legal, the most that could happen if it was actually a copyright infingment is a cease and assist letter and if you still didn't stop then they could sue you.

Selling knockoffs will get your listings pulled. Consult with a real attorney and not people on the internet if you don't want to get some heavy fines.