Exercise trampoline (CT9)

I've come across an exercise trampoline if you or anyone you know is interested. It's quite wide - 3ft (92cm) - but not big like the garden ones, stands about 6in (15cm) off the ground with screw-on legs and has a detachable handrail to hold on to - I think it may be for 'rebound exercises' or something like that. I don't know how the handrail attaches to the base so there may be a few screws/bolts missing.