A. It was three chi (尺) high and four chi wide with a crossbar on the top and a row of sharp iron blades at the bottom

B. The upper was a four-legged small wooden stool. The bottom, attached to the stool, was a slightly larger wooden board with two ends upturned

C. It had more than 20 sharp metal blades fixed to its bottom and a long handle on its back

D. It was shaped like a claw, and was mostly made of bamboo or iron in the form of a pointed tube