Check the listing for details. Greatever Large Full Face Adult Snorkel Mask. Condition: Pre-owned. Listed at 20.00 USD. Discover the ultimate underwater adventure with the Greatever Large Full Face Adult Snorkel Mask. This high-quality mask features a full face design that allows for natural breathing through both your mouth and nose. It also provides a clear and unobstructed 180-degree view of the underwater world, making it perfect for both beginners and experienced snorkelers. Crafted with top-quality materials, this snorkel mask is durable and comfortable to wear for extended periods of time. The large size of the mask ensures that it fits most adult faces comfortably. Manufactured in China, this mask is ideal for scuba diving, snorkeling, and other water sports. Please see photos for details. The clear piece seems to allow for an adjustable snorkel direction but there is no included information paper. Rubber and elastic straps are in excellent condition.