Thank you for viewing. Earth Pet Medicated Flea & Tick & Mosquito Repellent Collar Pink For Cats, 35cm, Set of 2. Thank you for your understanding. Protects your pet from ticks, fleas, and mosquitoes! Effects begin to appear in about a week and last for about 6 months. Not only does it effectively eliminate ticks and fleas, but it also repels mosquitoes. Contains phenothrin, which has excellent insecticidal effects and residual action, and pyriproxyfen (IGR/Insect Growth Regulator), which has been confirmed to be safe for humans and animals. Ingredients: Phenothrin (pyrethroid), pyriproxyfen (diphenyl ether) *The product may appear damp due to the medicine seeping out, but this has been confirmed with the manufacturer and does not affect use. Please note that the outer box may have scratches or stains due to home storage.