i found this bridle in equestrian plus magazine.
apparently it is the first bridle designed from the shape of the horses skull instead of just from the outside appearance.
its comfortable and humane. it combines a bridle, lunge cavesson and bitless bridle.
it is also good in overcoming danger from lunging off a bridle and also is more comfortable then the lunge cavesson.
It is good for horses who resist due to pain around frequently damaged bars of the mouth. or those horses who hate pressure on their tongue and either fight the contact or get their tongue over the bit.
The fit is dreadful, whichever way I have tried it will NOT fit my mare comfortably, and as for the bit clips, well, my mare ended up with a rubbed face
I need to sell mine on ebay or somewhere, used it twice, it will never go on my horse again