EFFECTIVE PROTECTION: The DEWEL flea collar keeps away nearly 500 species of larvae such as fleas, ticks, mosquitoes, and lice from your dog in just 1 week of use. NATURAL INGREDIENTS: Made with TPE and natural plant essential oils like eucalyptus, cinnamon, lavender, lemon eucalyptus, and linaloe, this collar is eco-friendly, natural, and safe for pets and humans. LONG-LASTING PROTECTION: Provides 8 months of protection thanks to its strong and long-lasting lemon grass scent. WATERPROOF DESIGN: Resistant to water, this collar can be used during bathing, swimming, or in the rain. ADJUSTABLE COLLAR: With a length of 63.5 cm, it is suitable for dogs and cats of different sizes. If necessary, it can be cut to fit. React immediately if the pet experiences any discomfort when using the collar for the first time.