Conviction Prediction by Dr. Michael Rubinstein"A brilliant prediction effect, that you never see coming. Five stars." Marc Salem Finally, a coin, poker chip, and mentalism effect, all rolled into one! Here's what happens: Three different color poker chips are freely chosen by three different spectators. Four coin envelopes are then introduced, containing coins from your collection. Each spectator freely chooses an envelope, leaving one unchosen. Throughout the routine your spectators may choose