I checked healthystuff.org and it does NOT say the entire set is toxic. It does say they have LOW (not toxic) levels of arsenic in the wood and HIGH levels in the red rattle - so that's helpful and considering the high levels of that one item (even if it is organic arsenic), I would not give that one item to my baby, but it's not the entire set.
I would assume that is ORGANIC arsenic as natural wood DOES have that. However, healthystuff.org does not distinguish between organic and inorganic arsenic. Please do your research properly before posting scare tactics on an entire product.
But, thank you for the helpful resource!