Kills and repels fleas and ticks for up to 5 months Bio Spot dog flea and tick collars works fast Kills adult fleas up to one month and prevents reinfestation Start killing fleas as soon as youput the collar on. Dog collarsare infused with the insecticidePropoxur to kill adult fleas. Dogcollars offer 5-month protection. Easy to apply. For dogs 12 weeks of age or older.Directions for use: Buckle collar around dog's neck. Fit collar snug enough to prevent placement of the dog's leg or lower jaw through the collar, yet loose enough to be rotated about the neck. Generally, 2 or 3 fingers should fit between the collar and dog's neck. Leave 2-3 extra inches on the collar for adjustment, cut off excess length, and dispose of in trash. Check periodically and adjust fit, if necessary, especially when puppies are rapidly growing. May be used in addition to regular collar. Replace collar when effectiveness diminishes. What to Expect Fleas: This flea and tick collar is designed to kill adult fleas. This collar starts killing fleas as soon as it is placed around dog's neck. Protection against fleas will be achieved within a few days, providing continuous protection for up to 5 months. Replace collar every 5 months to help control flea infestations on your dog. Ticks: Full protection against adult ticks will be achieved within a few days, providing continuous protection for up to 5 months. Adult ticks will be killed over the entire pet. Dead ticks will fall off or may be easily removed. Replace collar every 5 months for continuous protection from ticks. If your dog goes swimming or is out in the rain, it is not necessary to remove the collar. The continuous action collar will rapidly replace any flea and tick killing material removed. Please click on "More Information" for ingredients.Sorry, these items cannot be shipped to California.

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