This replacement netting for is perfect if your trampoline is looking worn or has been damaged. It is very simply to fit and slides over the metal trampoline enclosure poles. This netitng will fit 8ft trampoline enclosure with six poles. How to measure your trampoline- Your trampoline should be measured across its diameter, that's across the top of the trampoline from one side to the other, including the existing spring padding. The size will most likely be 8ft, 10ft, 12ft, 13ft or 14ft, although other sizes do exist. If you are not sure exactly which size you require feel free to contact us with the diameter measurements.