FNS1308 Features: * Wave monofin * Adjustable strap fits shoe size (Male 1-7 / Female 2-8) * Soft monofin blade * Provides a great source of fun and entertainment * Use both legs to kick like a dolphin or a whale * Use only with adult supervision * Safe to use in the pool, lake or ocean * Designed for swimmers aged 10 and over Dimensions: * Dimensions: 3"" H x 18"" W x 21"" D