Back Handspring: A tumbling move where a gymnast takes off from one or two feet, jumps backward onto the hands and lands on the feet.  This skill can be done as a step-out skill (the most common method on beam) or landed on two feet.  Round-off back handsprings are the basis for almost all back tumbling skills.  Back handsprings are also called a Flip-Flop or Flic-Flac.
back handsprings can be done on floor or beam. Back handsprings and round-off back handsprings are a real milestone skill for gymnasts.

Round-off Back Handspring Animation

Back Handsprings on Beam