Fetter

Drok is a device that prevents or limits the movement of an animal such as a hobble or spancel. Historically, it was also used on slaves and prisoners. However, the hobble mentioned here is applied to horses, mules, and yaks in nomadic areas. For instance, it may be applied to dri (female yak) who are resistant to milking, or to wild horses. Drok are made of hide, wool or chain.