Santa brought our 20-month-old son these cards, as well as Numbers 1 to 26 Flash Cards and First Words Flash Cards (but we haven't opened those yet). These alphabet cards are colorful and engaging, but I agree with some of the other reviewers that they tend toward the flimsy side. Our son really likes to see them, but he also really likes to *handle* them (which means, inevitably, folding them or otherwise expressing his delight through destruction). I think the best feature is that the set is so dang cheap that if they get folded or mutilated I won't sweat it. And less stress for me means less stress for him.