Sphera X Mask Mirror Lens Retail Price: ¥11,000 (Excluding Tax: ¥10,000) CL/WT A popular compact mask for freedivers. The curved lens provides a 180-degree field of vision, and the slim frame and small buckles reduce water resistance. Used 3 times. There are no noticeable scratches, so I think it can still be used. I have disposed of the original case, so it will be shipped in an ummy mask case.