The object of the invention is a protecting device for an elongated flexible member, the protecting device acting as a protection against biting and chewing on the elongated flexible member and being placed on at least a part of the elongated flexible member, wherein the protecting device is a spring made of wire or an array of rings arranged coaxially on a connecting element, the pitch of the spring or the distance between adjacent rings being respectively in the range of 0.05 cm to 5 cm； and an elongated flexible member with a protecting device.
