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This blindfold is one of the finest on the market today. The blindfold can be inspected (tried on) by any member of the audience. They WILL NOT be able to see through the thick black cloth. Even if they turn it around or turn it inside out they just can't see through the blindfold. However once you have it back into your hands you (or a confederate's) can see right through the blindfold with ease. Very easy to perform!