Walimex Pro Softbox Manual De Instrucciones página 15

Perpendicular* (e.g. Orange Line series)
Step IV
Proceed in the same manner with all the other rods.
Important: Always insert and secure the rods opposite each other before
proceeding to the next rod. You need to use a lot of strength to bend the rods.
WARNING
When tensioning the rods, make sure they don't spring up into your eyes.
There is a risk of severe eye injury.
CAUTION
Make sure you don't crush your fingers when opening or folding the rods
on the speed ring.
*depending on model
15