article_snippet.sent: The Merfin, a  monofin made from recycled rubber that lets you experience what it might be like to swim like a mermaid, looks set to be the essential piece of beach play kit this summer.
article_snippet.sent: Designer Kazzie Mahina says the Merfin can also help to tone abs and thighs .
article_snippet.sent: Designed to be used in the pool or the sea, the Merfin is also being promoted as a fitness aid which can help to tone abdominal and thigh muscles.
highlights_snippet.sent: Recycled rubber Merfin designed by Australian freediver Kazzie Mahina .
  