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  • Model: BC-MAT
  • Shipping Weight: 0.2lbs
  • Manufactured by: Trickmaster

This magical trick will turn you into a human computer! Show the 4 long blocks with random single digit numbers. When the blocks are placed side by side, you have four 4 digit numbers. You can instantly figure out the total of the 4 numbers! The blocks can be placed in any combination, but you can deliver the total immediately!

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