This cat flea collar is mixed with a variety of pyrethrum, adding synergistic ether to enhance the efficacy, in one time injection molding.
It can effectively repel away fleas, lice, mites & ticks.
These cat flea collars can be effectively worn for 3 months after opening.
It is best not to use this product on pregnant dogs, sick dogs and new puppies.
Use for dogs only older than 50 days.