A device which consisted of a main board cut with a wedge at the top fastened to two cross-beams. The naked victim was placed astride the main board as if riding a donkey, and various numbers of weights were attached to his or her feet. The agony could be 'fine-tuned' by using lighter or heavier weights.
Trivia & Comment
Sources relate that on occasion, the wedge would slice entirely through the victim as a result of the immense weight attached to his or her feet.