Trapeze

Trapeze acts were common acrobatic performances that were attractions under the Big Tops at circuses. One popular trapeze act was the Flying Graysons, which were part of Haly's Circus.

When Dick Grayson's parents; John and Mary Grayson were murdered, Bruce Wayne took him in, and Dick taught him a few tricks on the trapeze.

External Link

 * Trapeze at Wikipedia