Adding...
I found this version with a safety lock but I can't figure out exactly what the lock is like. :(

My baby has a Foldable Pikler Climbing Triangle (see photos).

Looking for ideas to "lock" it in an open position? When my son pushes on one of the sides it starts to fold in on itself.

Ideally need the solution to:

1. Be baby-safe (no choking hazards, etc)
2. Maintain foldable function as we store it away when not in use
3. Not turn it into an eyesore

My husband & myself are NOT super handy but we are happy to give things a go!

Look forward to any tips. :)