I am guessing a toddler size 4 because of my granddaughter.
The Mermaid Costume, Toddler 4t Halloween Tutu would be ideal for a young girl's 4t Halloween or mermaid-themed event.
Mermaid Costume, Girls Mermaid Costume, Baby, Toddler, Infant, Halloween Tutu
Child Deluxe Mermaid Costume Toddler Ages 1-2, Height 94cm
AOOWU Mermaid Costume Kids, Mermaid Princess Dress Set with Accessories, Little Mermaid Princess Costumes Fancy Dress Up for Age 3-9, Ariel Glitter Girls Costume for Halloween Cosplay
AOOWU Girls Mermaid Costume - Princess Mermaid Dress Set with Wig, Crown and Magic Wand for Girl Halloween Cosplay
Spooktacular Creations Toddler Girl’s Mermaid Costume Pearls Organza Size 3T
One Size Baby/toddler Mermaid Fancy Dress Outfit
