Extreme Pogo Stick

Last weekend at a family get together, one of the younger members of the family was showing off his Extreme Pogo Stick Skills.  He has a professional Pogo Stick that he can use a air pump to adjust the stiffness of the sick to account for different environments.  He can get better tha 6 feet high when bouncing and can do both forward and backward flips on it.  The picture is of my daugher on the pogo stick at rest.