Beautiful Shiny Colors High Quality Strechable Fabric Package list: 1* Mermaid Tail + 1*Tube Tops+ 1* Shorts + 1* Monofin (Totally 4 items) Features: Perfect for summer surfing, beach holiday, bathing and swimming. Swimmable If you put a Monofin in the tail. Walkable because at the bottom of the mermaid tail is hollow out. The bottom of the mermaid tail can be Closed by Buttons. Size Reference you can select the size according the kids height. 4T :110 -- fit for 100-110cm height 6T :120 -- fit for 111-120cm height 8T :130 -- fit for 121-130cm height 10T :140 -- fit for 131-140cm height 12T :150 -- fit for 141-155cm height Size (Height) Tail Length Tail Hips Shorts Hips Recommend Height 4T-110 100cm / 39.4" 52cm / 20.5" 40cm / 15.7" 100-110cm 6T-120 105cm / 41.3" 55cm /21.6" 41cm / 16.1" 111-120cm 8T-130 110cm / 43.3" 58cm / 22.8" 42cm / 16.5" 121-130cm 10T-140 115cm / 45.3" 61cm / 24.0" 43cm / 16.9" 131-140cm 12T-150 120cm / 47.2" 64cm / 25.2" 44cm / 17.3" 141-155cm Please Allowed 2-3cm Inaccuracy Due to Manual Measurement, Thanks! ( 1cm = 0.39inch,1inch=2.54cm). The Fabric is high elasticity, You can select the size according the Kids Height. The color may be a little different due to the effect of light and moniter setting. It is Asia size, please don't choose it as a US /EU /UK size,it is smaller than US /AU/ EU size. If you don't know what size to choose ,please contact our,we will in 24 hours tell you !