Prevendog collar against mosquitoes, sand flies and ticks Prevendog is an effective antiparasitic collar for dogs, protecting against ticks, mosquitoes, and sand flies. A new concept in medicated collars with great benefits for you and your furry friend. Plus, it provides up to 6 months of protection against ticks and mosquitoes and up to 12 months against sand flies! Forget about those pesky parasites that put your dogs health at risk for a whole year and enjoy the park and countryside without worries. The Prevendog collar uses deltamethrin as its active ingredient to keep insects away and prevent infestation. Its advanced technology allows for slow and continuous release throughout the body for effective and longer-lasting protection. This innovative, fragrance-free gray collar features an anti-strangulation safety system, is elastic for greater comfort, and has a triple-lock system for quick opening if needed. Deltamethrin works on contact, protecting against ticks and mosquitoes for 6 months and against sand flies for 12 months. Buying the two-collar pack offers protection at a much more affordable price. Its the best way to combat the dreaded leishmaniasis, transmitted by sand flies; filariasis (heartworm), transmitted by mosquitoes; and Lyme disease, spread by some ticks. ADVANTAGES OF THE PREVENDOG COLLAR: Antiparasitic collar for large dogs. Protection against ticks, mosquitoes, and sand flies. Elastic, smooth, and secure collar. Triple anti-strangulation closure system. With 4% deltamethrin. Continuous release. Fragrance-free. 6 months of protection against ticks and mosquitoes and 12 months against sand flies. Occasional contact with water does not reduce its effectiveness. Prevents Leishmaniasis. USE AND SPECIFICATIONS: Anti-parasitic collar for large dogs from two months of age and 25 kg in weight for protection against ticks, mosquitoes, and sand flies. Not suitable for puppies under 7 weeks of age, dogs with hypersensitivity, skin lesions, or cats. If your dog experiences any type of reaction (itching, irritation, hair loss), remove the collar. Instructions for use: Detach the protective strip from the collar and place it around the neck. Hold the main clasp between your thumb and forefinger and press to allow the other end to pass through. Press the main clasp and pass the entire collar through, adjusting it to a couple of fingers so it is not too tight. Repeat this process, passing the collar through the second and third clasps. Cut off the excess length, leaving about 6 cm in case you need to lengthen it. Composition: Collar 75 cm (32.60 g): deltamethrin 1.304 g. Measurements: The 75cm collar fits necks up to 65cm Format: 1 necklace of 75 cm, 2 necklaces of 75 cm The Prevendog antiparasitic collar protects your dog from diseases transmitted by ticks, mosquitoes and sand flies for up to 12 months.