"Product samples" refers to small portions or examples of a product that are given for free or at a reduced cost so that people can try them before deciding to buy the actual product. Full definition
In addition, I received product samples of a few of these products. (snackinginsneakers.com)
I've received requests in the past from print & online magazines for product samples for consideration, but I've learned that you can't get your hopes up. (theeverygirl.com)
I was not compensated for this post but did receive free product samples and all opinions are my own. (blogging-mamas.com)