(Clearwisdom.net)
In this torture, the victim's hands are handcuffed and the feet are shackled.
Number 1 shows the handcuffs. There are two rings that are connected by a 15-cm-long chain. Once the hands are put into the rings, screws secure the rings so that the hands cannot be taken out.
Number 2 shows the shackles. The two smaller rings on both ends are used to secure the victim's feet. Three bigger oval rings, each 30-cm-long, 20-cm-wide, and 5-cm-thick, connect the two smaller rings on both ends. Once the feet are put into the smaller rings, the rings are secured by screws so that the feet cannot be taken out.
Number 3 shows the ground ring. This ring is secured to the ground. Then the handcuffs, shackles and the ground ring are tied together to a lock on the floor. Under such torture, the victim can only sit and is unable to lie down. The police often lock practitioners this way for several days straight. If the practitioners wanted to use the bathroom or eat meals, they would need other people's help. In the winter time, the victim is not allowed to wear warm clothes.
Normally many people would collapse under such torture in no more than two weeks.