15" (Frame) Replacement enclosure netting with straps and rope. For Arched Enclosures Only! Designed for the 4 Arch System. Net, straps, and rope only, trampoline and poles not included. Determine the size of your trampoline by measuring the diameter of the trampoline frame. Take the measurement from the outside edge of one toprail to the outside edge of the exact opposite toprail. Be sure to take two measurements in different locations to confirm your size. Fits 15-1/2 JumpKing, Bazoongi ProJump, Sam"s, Lifestyles and 4-arche enclosures.