In the first instance, it is an iron hook connected with a thick leather pad tightly clawed by performer's teeth. The hook, in its turn, is fastened to the apparatus, a partner's belt, etc. the most frequent trick in this case is fast revolution of a performer holding the tooth fixture in his mouth. In the second instance, instead of hook a thin plate is located on the end of teeth fixture. In the latter case a performer is balancing various articles (usually knives, glasses) placed on the very edge of the tooth fixture.