Reins are used to direct a horse (or other animal) when riding or driving. They are attached to a bridle's bit or noseband and are made of leather, nylon, or other materials. Reins are used to give subtle commands or cues—also known as rein aids—to ask for a turn, a slower speed, a halt, or to go backwards.: 402 : 178
Riding reins (top); driving reins (bottom)
Types
A closed rein (left) will stay looped over the horse's neck; split reins (right).
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