A circus apparatus, which is used frequently in aerial acts; the name of relevant circus genre. Immobile trapeze is a small round cross-beam with iron rods secured in its both sides and suspended motionless under the circus cupola, whereas common mobile trapeze is secured with ropes or metal straps, not rods, to provide free swinging. For the purpose to improve this genre performers works on double or triple trapeze allowing several performers to work at the same time.