Guide:
1)Place collar around dog’s neck, adjust for fit, it’s better to leave 2 or 3 inches for extra adjustment, and buckle in place.
2)The collar should be worn loosely to allow it move around the neck, and cut off the excess length.
3)Under normal conditions, replace collar every 60 days.
4)Under abnormal conditions, for example, swimming, collar should be replaced more often for protection.