Blind-sight Outdone | Devin Knight 100-300 Only one balloon out of

Only one balloon out of three remains inflated

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Blind-sight Outdone | Devin Knight 100-300 Only one balloon out ofNOTE: Do not confuse this with the original Blindsight. This 100% new method will fool those who have the original trick. The performer shows four manila envelopes. There is nothing written on the envelopes, nor are they secretly marked. He shows them freely on both sides and points out the envelopes are opaque. The performer hands the envelopes to a participant; saying inside each envelope is a different colored card: Green, red, blue, and yellow.