Quality tarpaulin, he seems quite correct (but to do with time). Protection is ensured by following a few simple criteria: the trampoline must be of the same style as that presented (without blocking the tarp pole on the circumference otherwise have the same dimensions as the cut shapes), soft (to avoid a puddle at maximum middle) and regularly emptying the water reservoir .. The seams seem sturdy enough for proper voltage protection. We'll see with time. To see if you have a garden furniture (type round plastic table), this can certainly protect also ...