They will be convinced that you can't see a thing!
If you have a routine where you need to be blindfolded, here is an EASY answer for you!
The See Thru Blindfold is made of black cloth, and can be securely fastened to cover your eyes. It allows you to have a very clear view while looking very deceptive to your audience.
The Blindfold has two settings- "clear view" and "no view". You can actually let a spectator try and see through the blindfold- they can't. But with a secret move, you can turn the clever cloth into a blindfold that you'll be able to see right through. Yet your audience watching you will not be able to detect that you did anything to the blindfold- it will look perfectly normal and convincing to them.
Imagine the effects you'll be able to do! Let someone write on a chalkboard- you can tell what they wrote! Have your assistant hold up objects borrowed from audience members- you'll know what the objects are, and who they were borrowed from! The possibilities are endless!
Please use common sense and caution when wearing the blindfold. Any cloth that you place over your eyes will restrict your vision to some degree. It is not advisable to drive a car blindfolded, or to physically negotiate yourself through obstacles while blindfolded, or to engage in any activity that may cause harm to you or anyone else. MagicTricks.com accepts no responsibility for the manner in which this blindfold is used.
The See Thru Blindfold is made of a sturdy woven black cloth, with side band straps that are closed by tying them together around your head. It is very effective to let an audience member tie the blindfold around your head- and it makes operating the secret mechanism even easier for you.