Product Description Package: 1pc Mermaid Tail Sets includes :1 Mermail Tail like picture (This items Not include Monofin) 1. The 1pc Mermaid Tail sew on the bottom(it can put the monofin inside smoothly) 2. The Years is only for reference,please check the detail measurement before purchasing,thanks. 3. Material:80% nylon+20 spandex Size Chart (Please note that 1 cm = 0.39 inch) Child S (4-5 Years) Recommended Age 4-5 Years Old Child M (5-6 Years) Recommended Age 5-6 Years Old Child L (6-7 Years) Recommended Age 6-7 Years Old Child XL (7-8 Years) Recommended Age 7-8 Years Old Child 2XL (8-9 Years) Recommended Age 8-9 Years Old Adult Small Adult Medium Adult Large Tip: The swimming costume washing Instructions Rinsing after use in cold water,squeezing excess water out gently. Do not twist the fabric,do not use detergent,bleach,or fabric softeners. Do not iron or dry clean,The bright shiny foil finish may fade after wear.all of the sparkly foil will come off if you run it through a washing machine! 1. About size: please compare the detailed sizes with yours and allow 1-2cm error due to manual measurement, thanks. 2. Due to the different shooting angles and lights, please allow color deviation for the actual product.