Review on Learning Resources Snap N Learn Matching Sorting by Tai Wiest

Ordered these for my son's birthday. First, they don't "snap" together, many parts don't exactly fit together at all. Second, although it's hard to tell from the photos, all the parts are dirty, like they have soapy water, and some of them have different marks like someone picked them up with a pen. I think I may have received a returned set that someone played with before returning it. Not thrilled they seem to be made out of cheap plastic and I have to wash them all thoroughly before my son can open them for his birthday.