This ENCLOSURE NET is designed ONLY for use on our 5 LEG/5 ENCLOSURE POLE COMBO UNITS: Bazoongi JumpPod Units (BZJP1506 and BZJP1514C, JP1514) that have our unique G4 Enclosure Pole and BIG T Connector features. This 15" Enclosure G4 Net includes cord locks and is used with a G4 Pole set and a G3 Pole set (both sold separately). This net features fabric inserts to slide poles into the top and bottom of the net as well as specially cut sections to connect the enclosure caps into the enclosure poles. 15" Enclosure G4 POLE SET and G4 POLE SET sold separately. 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. Customers can substitute the NET15-JP5 net if they don"t use the set of g3 bottom poles, use rope instead.