PlanActivity Stingray Whistle

Purchased this for my 3 year old as a stocking stuffer. It was a big hit! It has a nice weighty feel, easy to use and not super obnoxious sounding as far as toys that create noise. I was a little worried about it breaking when it fell on tile (inevitable at my house) but so far, it's held up quite nicely. My nine month old likes running around with it too :)

Got this for a friend as a joke but it is very cute. Material seems to be wood and it does whistle.

Big hit , drove parents to despair, where do I buy more?

Only one whistle was sent instead of the set of six that was stated in the product description - very disappointed, the whistle has been returned.