1.More Safety, Eco-friendly: More effective cat flea collar than other collars and still safe and hypoallergenic for you and your pet. Certain parasites in cats can harm the health of their owners, who are most in contact with their pets. Therefore, it is necessary to wear cat flea collars, which is beneficial to the safety of cats and families. 2.Flea Collar for Cats: Cats are easy to be infected with flea and tick when playing, which can cause itching and skin allergy symptoms of pets. Therefore, flea collar for cats is necessary to regularly expel flea and tick in vitro to protect the health of cats. 3.More Lasting and Eliminates Fleas: When you open the package, performance begins to play. Under normal conditions, we inoculate cat flea and tick collars for a longer period of 8 months. The double packing of aluminum box and sealed plastic bag also keeps the effect effectively. 4.Waterproof Cat Flea Collar: Even when the cat is bathing or playing, there is no need to worry about the effect of the cat flea and tick treatment collars. Contains natural plant essential oil is mild and harmless without irritating smell, so it can be used safely.