I bought these blocks for my 3 month old baby and they seem to be a hit (but who can say what goes on in a baby's brain). They're easy for her to grab and light enough that she doesn't drop them right away. The only downside is that they are only superficially clean, presumably due to the rattles inside. I wish I could wash them thoroughly before giving them to her too, but she didn't get any boils so I guess it's ok.
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