Hartz UltraGuard Plus for dogs and puppies

Directions: Do not remove the collar from its package until ready to use. Remove the collar from the package unroll and stretch to activate. This releases the active ingredient at time of use and assures full activity. Place the flea collar around the dog's neck, allowing a spacing of 2 fingers between collar and neck and buckle in place. Leave 5 to 8 cm on the collar for extra adjustment. Cut off any excess length, wrap and dispose of it in the garbage. Wash hands with soap and water after handling collar. Replace collar every 7 months for continual pest control in situations where there is an ongoing risk of pest infestation.
Ingredients: Tetrachlorvinphos, Methprene