LSD stands for Lysergic Acid Diethylamide, which is a hallucinogen.Popular in the 60’s and 70’s, it has slowly been making a worldwide comeback. This goggle distorts the perception of the size and shape of objects and gives the user a distorted perception of color. Combined with impaired depth perception, this visual hallucination simulates a bad LSD trip. These goggles are being used throughout the United States and in 76 different countries! Each goggle includes a cloth carrying bag and an Instructor’s Guide, available in Spanish if you request it. Backed by a full 5-year warranty.