This is the repair insert for plastic hoop, if the one is broken by the factory connection.

Print the insert, clear the supports, remove parts of the hoop's factory connection and plug the insert into the hoop's tube.

Check if the borders of the tube are even. If not, cut a bit with caution -- and connect again.

After connection, use glue tape with fabric over the connection, e.g. tube repair tape.

Hoop's tube dimensions:
Outer diameter = 18 mm
Inner diameter = 13.45 mm