I was in doubt when it arrived because I realized it's plastic. Collapsible, movable plastic parts :/
However, Kun Mini Collapsible has proven to be very well built. Yes, it's plastic, but good choice of plastic was made. It's sturdy enough to survive daily use for three months so far. Nothing flimsy, everything like the first day it arrived.
We use it currently with 1/16 violin, and we believe it will be good enough for the next "size". So far, no regrets.