I purchased this for my 3 month old son and it is great for him, although he's too young to use it for teething he loves the sound the loose rings make while I shake it and he is fascinated by the colors. We'll play with this for at least 30 minutes. The problem is my 3 year old thought she'd use it for teething and with one bite dented in the wood significantly (I got it away from her before she could splinter the wood). There is also a possibility of the baby pinching his fingers in it as the colored wood parts do pull apart and I can't help but wonder just how strong the string holding them together is. The colored pieces of wood are movable and can be twisted into shapes which really interests my son- this does pose a bigger problem of being pinched but so far it hasn't been a problem yet.While is is beautiful and clearly a much better option than plastic it's not the perfect teether in my opinion.