DIRECTIONS FOR USE: It is a violation of Federal law to use this product in a manner inconsistent with its labeling. Do not open until ready to use. Dust will form on collar during storage. Do not get dust in mouth or eyes. Place collar around pet's neck, adjust for fit, and buckle in place. The collar must be worn loosely to allow for growth of the pet and to permit the collar to move about the neck. Generally, a properly fitted collar is one that, when fastened, will snugly slide over pet's head. Leave 2 or 3 inches for extra adjustment. Cut off and dispose of excess length. Wash hands after placing collar on pet. Replace collar every three months or sooner if needed.