Bounce the day away on the 16ft HyperJump 4 Spring Trampoline. The new series HyperJump 4 offers all the big bounce benefits of a spring trampoline with increased protection from metal components. Little ones can jump, twist and flip carefree on the HyperJump 4 with the support of the reinforced safety netting and foam-covered metal springs to protect small wandering hands. Our curved poles allow kids to safely fall on the net with the smart zipless entry making it easier to enter and exit the trampoline.