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How to stay safe when using a trampoline
Place your trampoline in a flat, open area.
The ideal location for your trampoline is one out in the open, away from any trees or objects that you might hit while jumping. You also should keep the ground clear for several feet around the trampoline.
Removing any objects within 8 feet (2.4 m) of the trampoline in all directions. The ground under and around the trampoline should be as level as possible to keep people from jumping too high or causing the trampoline itself to flip over.