... , GS certificate square trampoline for kids, TUV, GS certificate Description: The largest Plum ... improve your strength, agility, balance, stamina and general fitness.Bouncing, jogging or dancing on the Plum exercise ... improve your strength, agility, balance, stamina and general fitness.Unlike regular trampolining, the aim isnt to bounce ... AND IS GREAT FU square trampoline for kids, TUV, GS certificate