A wolf collar (also known in Italian as: roccale or vreccale, Spanish: carlanca) is a type of dog collar designed to protect livestock guardian dogs from attack by wolves. Wolf collars are fitted with elongated spikes. The purpose of the collar is to protect a dog's neck when it has to fight off wolves. The collar base protects the dog's throat and carotid arteries, while the spikes are intended to deter bites to the neck or even injure wolves trying to do so. Such collars are used by shepherds in many countries including Italy, Spain and Turkey.
A roccale or vreccale, a spiked iron dog collar in Lazio, Italy.
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