Swimming is one of the most important skills for a kid, and it would be dangerous for a child to learn to swim unprotected.
Shark Fins are designed to help young children learn swimming faster and play with friends more safely in the water.
If you are a parent who want to play with your kids in the pool, buy it for your children. If you are a swimming coach who teach children how to swim, buy it for your students. If you are an entrepreneur who own a swimming pool or a beach, buy it for your customers.