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The Chilean is designed for stability, the back strap ensures that the mouthpiece cannot be pulled through the mouth while the linked mouthpiece is able to take the shape of the horse’s mouth and spread pressure ever evenly.
It will wrap around the lower jaw. The arms that the reins are attached to allow for an opening rein aid.
The Chilean was originally designed for young horses.
The mouthpiece spreads pressure very evenly and stays very stable in the mouth, while the rein attachments allow for an opening rein aid to be used.