It’s plastic, not a problem if you don’t stomp hard with your boot, and it reduce the weight of the bag compared others made of metal.
A little higher the some others, but that’s perfect when I use two of these beside my organ swell pedal for switching rotary speed and A/B drawbar settings with heal and toes, without leaving the swell.
I opened it up, (as always..) and the internally it is very well put together!
It will last for many years of gigging