The TUSA Splendive IV -3.5 Diopter Full Lens Pair is a high-quality diving mask designed specifically for snorkelers or scuba divers with nearsightedness. Manufactured by Tabata and branded by TUSA, this product offers crystal-clear vision underwater for a safer and more enjoyable diving experience. With a -3.5 diopter correction, this lens pair allows for a seamless transition from land to water, making it ideal for water sports enthusiasts looking to explore the underwater world without the constraints of glasses or contacts.