Queenshiny&reg; Girls Kids Mermaid Tail Swimwear with Monofin Costume Adult Fabric: 85% Polyester, 15% Spandex Package Included:1*Mermaid tail+1*Mono Fin Queenshiny (Registration Number:4628600) is a registered brand, we have not authorized any third parties to sell our products Notice:please do not wear Tail on the ground when you wear it.Based on the particularity of sparkle matirial, all tail fabric will eventually fade and change color after over time used or excessive friction.please do not us Fin on the ground and use it in the water otherwise it will be fell apart.