Kids Mermaid Tail Fin Adjustable Monofin Swimming Flipper Diving Swimmable ToolFeatures: 1. Made of high quality materials, durable and reusable. 2. The new mermaid tail fin design will increase the fun of children's water sports, it can make children become more confident in water sports. 3. Swim fins for kids, with new powerful adjustable strap. Quick release foot straps and adjustable elastic straps make this swim fin easy to put on and take off, and stable on your child's feet. 4. The mermaid's tail fin adopts a new soft and