Lovely Little Girls Mermaid Swimsuit Bikini Swimwear 3pcs Set Girls cute 3pcs Mermaid Tail costume, good for beginners Hollow out tail bottom, easy to stand and walk around Easy elastic halter slides over the head Great for the bathtub, kiddie pool, beach or photos! We are Asian size,one size small than U.S size. Please kindly check the size cart in description before you buy.