* SAFE COLLAR: The collar is made of pure natural plant essential oils that repel pests in a safe and natural way. * The Shengkou flea and tick Collar's innovative sustained release technology repels fleas, ticks, easy-to-use, Natural citronella smell, non-greasy flea collar. * UPGRADE DESIGN – The flea and tick collar adds a emergency breaking point design that allows your dog and cat to walk and play in the rain or wet snow without worrying about their Safety and the effectiveness of the collar. * PERFECT SIZE: This collar is suitable for cats older than 10 weeks and with a neck circumference of 13.8 in or less. Simply adjust the collar to fit the length you need and cut off any remaining length. * WATER RESISTANT COLLAR: ShengKou Collar allows your beloved cats full protection at any time or places even in the rain, swimming or bathing. The collar will not need to be removed from your cat's neck until you want to replace it. However, immersing in water for a long time will shorten the protection time. * Responsible customer service team, if the product has any problems in the process of use, please contact us in time.