AirZone 12' Trampoline With Springs - Top Frame Rail with sockets

This is the top rail for the 12' AirZone, Variflex, Bravo Sports trampoline with holes in the frame for springs the trampoline took 72 - 7" springs, this is not the one for the trampoline that takes 5.5" springs
The tubing is a round tubing (chrome colored).

This top rail is not for the banded 12' trampoline.

This is ITEM C in your manual

Specifications:
39.5" long, socket length is 2.75" long, pipe diameter 1&5/8"