Overview: Magician displays five cardboards each divided in four different colored sections & four different numbers on it He asks the audiences to select four cards & one number on each card, selected numbers are to be covered by coins, after spectator finish selecting of numbers magician immediately announces the total of all four selected numbers, now spectator is asked to add all number together, the result is that the sum he got exactly matches the number announced by magicians few moments ago Specification: Weight Approx:9.4g Size Approx:8.8 x 6.3 x 0.2