Bondage is a bondage - generally with ropes, even with the aid of leather cuffs, handcuffs, etc. The bondage can be done for its own sake, or to sub to make defenseless against the actions of the cathedral. The feeling of being helpless, and in anticipation of what else happened or what was still kommtallem what may come, may act powerfully arousing.
Drastic materials such as wire, Clothesline, rubber bands are not suitable in bondage because they hurt the skin under the train and can interrupt the blood supply. A pair of scissors should be ready to solve the Bondage Restraining quickly to an emergency.