describe: Design: Monopter can be added, but monofin is not included. The mermaid tail has a zipper or button for easy walking and easy putting in and taking out. The design of the mermaid tail follows the concept of a real mermaid. This is the best gift for little girls and toddler girls who have mermaid dreams and want to make them come true. Safe Polyester Material: The pattern is made by 3D laser printing, the highly elastic swimmable mermaid tail is made of polyester, this material feels smooth, durable, stretchy and breathable, quick-drying and not easy to fade. It resists the effects of sunlight and pool chemicals. Girls mermaid tail costume is suitable for all occasions: beach vacation, mermaid dress up, kids pool swim party, bathing summer surf, themed swim party, kids photography, pool cosplay, Hawaii and more. Best Gift: Cute 3Piece Mermaid Tail Costumes for Girls for Girls Ages 3-13. Every girl has a mermaid princess dream. This is the best gift for little girls and toddler girls who have mermaid dreams and want to make them come true. Package contents: 1 set of mermaid swimsuit