1. The collar can prevent and treat flea infestation, inhibit flea growth, and help treat and prevent allergic dermatitis. 2. Natural ingredients: anti-flea and tick collars based on herbs and essential oils, which can effectively repel fleas and ticks, but are also friendly to pets and owners. 3. Long-term protection: The collar is committed to preventing cats from being harmed by fleas and ticks. It provides cats with continuous and effective protection for up to 8 months 4. Waterproof collar: Great for use at the beach, vacation, camping, on a boat, hiking, swimming pool. No need to take off the collar when swimming or bathing Unique and flexible collar design makes your pet feel comfortable 5. Suitable for dogs/cats over 7 weeks old 6. Product ingredients: eucalyptus oil 3%, plant essential oil 3%, citronella oil 3%, others 91%. 7. Aluminum box size: diameter 83mm, height 28mm 8. Collar size: for large dog (length 72cm, width 1.35cm), for kitten (length 38cm, width 1cm)