Composite design vented open heel fins with adjustable straps designed to follow the kid's growth. Open heel fins with adjustable straps designed for kids aged from around 4 to 12 years old. Straps have large thumb loop for easy donning and doffing. Dual vented blades for power and energy saving. Compact size good for travel. A fun design that your kids will love. The Rocks are designed by the Italian brand Cressi and made in China. Cressi has been a brand pioneer in scuba diving snorkeling and swimming equipment since 1946. The Rocks fins is Cressi's answer to the price conscious parents who needs reliable snorkeling fins for their kids for vacation use. The Rocks are a composite-design vented open heel fins with adjustable straps designed to follow the kids growth. The straps have the large-thumb-loop for easy donning and doffing. Dual composite vented blades provide excellent power and energy saving efficiency. All in all these fins are great for family snorkel trips and will allow hours of underwater exploration. The Rocks fin is designed in Italy by Cressi and made in China. Cressi has been an Italian brand pioneer in scuba diving snorkeling and swimming equipment since 1946. The product is covered by a 2-year limited *.