Product Name: 3pcs Mermaid Tail Kids Swimwear Costume with Single Fin Features: Very cute and beautiful, perfect for summer surfing, beach vacations, bathing, swimming, cosplay, birthday gifts, Christmas gifts. Swim if you put a monofin on the tail. You can walk after taking off the monofin. Size Reference: The fabric is highly stretchy, you can choose the size according to your child's height. Size: S -- Fits 105-115cm Height; M -- suitable for 115-125cm height; L--Suitable for 125-135cm height; XL:--Suitable for 135-145cm height; XXL--Suitable for 145-155cm height; Packing List: 1 x Swimsuit 1 x Swimming Shorts 1 x Mermaid Tail Due to different measurement methods, please allow 2-3cm measurement error. Please allow the color difference between the picture and the product due to the problem of shooting tools and light.