Effective Flea Treatment for Dogs: Flea Collars for Dogs develop an effective flea treatment based on the growth cycle of common harmful parasites on dogs. It helps prevent parasites and is effective in reducing and eliminating existing parasites. Flea collars can also prevent many diseases caused by parasites, effectively protecting your pets and family. POWERFUL NATURAL FORMULA: our flea collars for dogs are made of soft rubber and contain 100% natural plant essential oils like lemon eucalyptus, lavender and linal wood, safe and free from harmful chemicals that will not cause no irritation to your dog or allergies. Natural and safe ingredients guarantee protection against fleas and other insects without harming pets and owners. 6 Months Protection: This flea and tick collar for dogs is designed with controlled, slow-release active ingredient technology to cover your entire pet. body within 24 hours, providing 6 months of full body protection. Long-term protection for your pets and family against fleas, ticks, mites, lice and larvae and other parasites, and reduces the risk of infection. ADJUSTABLE AND WATERPROOF: The adjustable collar can be easily cut to fit different sized dogs. With a thoughtful waterproof design, the dog collar will work well in the rain, even when your dog is bathing or swimming. You can also remove the collar for better results. This product is not suitable for puppies and kittens under 3 months! ! ! The ingredients are: brine oil, lemongrass oil, ketone oil ingredients. The principle is that plant essential oils made from these ingredients are not liked by insects, so as to achieve the purpose of repelling insects. Product Information Product Size: 7.5*6.5*15.2CM [product net weight]: small 0.014kg medium: 0.018kg large 0.024k [delivery package]:OPP bag All information may contain minor errors and is for guidance only