I've been riding again for a few months after a gap of a good few years. My riding is fine but I've forgotten loads of other things so I'm trying to read up.
The horse I've ridden a few times at the riding school wears a bit like this. Though it doesn't have the small ring above the bit just the 2 below. The reins are on the bottom ring.
What is this bit called and what is its purpose?
I could ask at the stables but I'm a bit embarrassed at how foggy I am