TUSA Splendive II MaskTUSA Splendive II Mask The Tusa Splendive II Diving Mask features a split lens design that is very lightweight, only 179 grams. It fits snugly to your face, providing an extra wide field of vision and is also quick and easy to clear. Like the M 40, the TM 7500 has a low internal air volume making it is less buoyant than most other designs, reducing unwanted lift. Like all TUSA masks, it incorporates a wide range of features to enhance comfort and