These items were purchased quite some time ago and have been stored. I believe the whistle was purchased in Hawaii. I don't remember where I bought the cap (hat) or the keychain. All items are unused, but please understand that they have been stored by an amateur for a long time before purchasing. The hat size is marked as free size, and it says 57cm to 60cm. I don't recall ever trying to blow the whistle. I don't remember the price of the keychain, but I do recall thinking it was quite expensive. *Please understand that for shipping, I will pack them by folding them to a thickness of 3cm, as much as possible without affecting the items.