Flea and Tick Collar for Dogs Cats With Aluminum Case 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 dogscats 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)