Two thin lenses of power +4 D and -2 D are in contact. What is

power 4dThe power to move, walk and travel in four dimensions. Sub-power of Unrestricted Movement and 4th-Dimensional Access. Technique of Space-Time Manipulation and Dimension Manipulation.In collaboration with HAPPY POWER. Only 300PCS Produced. Features: Full Size 36x18; Our Champion-Grade Speed + Control Surface; Soft Rubber Anti