I purchased this Ariel costume a few years ago at Party City in the US. I've only worn it once. It's a child's size S, which should be a good fit for children aged 4-6. If the waist is too big, you can adjust it with safety pins. The skirt has a lot of volume, so it looks very cute when walking! How about it for a Halloween party or a trip to Disney? For those who love Disney princesses! I will fold it compactly for packaging, so please hang it on a hanger to remove wrinkles before wearing. #HalloweenOnMercari