Halter Ring for climbing aid

I have a "strange" flower outside (only the storm and heavy rain yesterday made it looking a little sad) and it's getting higher and higher...

To help it fast i found 3 bamboo sticks and created this halter ring for them.

The sticks have a diameter approx 5mm, therefore i made the holes 4,8mm, with this they can't slip down.

Yes, it is a quick'n'dirty solution (10 min design, 32 min print), but it does the job.