Jumparoo Anti-Gravity Pogo Stick by Air Kicks, Small (For Riders 33 to 66 Lbs.) Powered by patented jumping jax technology For riders weighing 33-66 Lbs Patented, exceptionally rugged rubber t-springs that bounce an astonishing 2 in the air Unlike other pogos, JUMPAROO is stable and easy to balance on, thanks to its wide, high-traction base Non-marring base wont mark floors, so it can be used indoors and out