3 Pack UltraGuard dual action topical flea and tick prevention for dogs and puppies 31-60 lbs. Fast-acting drop formula kills fleas, flea eggs, deer and brown dog ticks, plus prevents re-infestation for 30 days. Includes 3 monthly treatments in easy to apply, single dose tubes. This product also kills deer ticks, which may carry Lyme disease. For use on dogs and puppies 12 weeks or older that weight 31-60 pounds.