zymzy Parasiticide Collar for Cats - 100% Safe & Eco-Friendly - Based on Natural Oils - Anti-parasitic Prevention Pets - Waterproof Anti-parasitic Collar - 6 Month Protection SAFETY: Eco-friendly, nontoxic, non-allergic and odorless flea collar for cats and kittens. A new formula, which includes Natural Essential Oil. The cat flea collar that work is safe and does not contain components that cause allergies in cats EFFECTIVE: Veterinarian-recommended our ea and tick prevention for cats. This natural flea collar for cats kills eas and ticks on contact. No biting is required 8-MONTH PROTECTION: Cat flea and tick control protects your pet from flea and ticks during 8 months. It would be definitely an economical way rather than spend much time and money buying shampoo or visiting your vet often WATERPROOF: Cat flea medicine will be effective after swimming, bathing, and playing in the rain. So don't worry if your flea cats get wet while wearing flea collars GUARANTEE: If you're not completely satisfied with our flea and tick prevention for cats or if there's any technical issue, feel free to contact us or return the collar. We'll offer you 100% refund