Bondage tape is a 2-3 inch wide strip of thin plastic material that adheres only to itself, without any adhesive, that is typically intended to be used in erotic bondage. Since it does not stick to the hair or skin, a bottom can be tightly bound and/or gagged without causing harm when the tape is removed.
Some tape is thick enough that it can be unwound, unwrinkled and rewound for reuse, but usually it is simply and quickly removed by cutting it with blunt-tipped scissors.
If the tape is applied relatively flat on the body, the risk of losing circulation is minimal. However, until the top has sufficiently practiced, the tape is easily twisted, in which case it becomes like plastic string and thus more likely to pinch and possibly cause a loss of circulation.
See also Edit