The hopping experience provides an aerobic workout for toddlers and pre schoolers whilst also strengthening their core muscles increasing balance control and developing co ordination skills with a wide choice of designs and colours there is a happy hopperz design to appeal to even the most discerning little rider as happy hopperz inflate and deflate in a matter of seconds and fold down compactly when a child gets attached to them which they seem to very quickly it is not a problem they