Kids Monofin easily propels like a Mermaid or Merman We sewed the edge of the fin, which won't hurt your children and mermaid clothes. The Fin unmatched resilience, Monofin can be bent, and if they deform during transportation, they can be twisted back to their original shape. Ｍermaid tails, Monofin, and swim accessories make the gift for kids swimmers. Special design: We sewed the fabric onto the plastic board, reducing water resistance and reducing weight Safety Warning:This item poses of drowning and is only intended for used by competent swimmers who are over 6 years old under strict competent adult supervision at all times, regardless of swimming ability.