The VETOpure Bio Collar for Dogs is effective against parasites such as fleas, ticks and mosquitoes. Collar specially developed to repel external parasites. The collar contains: Natural extracts of Marjosa (Neem). This extract is known for its flea, tick, and insect repellent properties. Lavender, which has a pleasant scent with insect repellent properties as well. Thanks to the manufacturing process, these collars ensure a continuous release of natural extracts of Margosa and Lavender into the animal's fur. The collar is hydrophobic: its properties will not be affected by water or moisture. Its smell does not bother the dog and does not affect the sense of smell The length of the necklace can be adjusted according to the size of your neck The collar is effective for three months. An effective product without pesticides to repel parasites Keep out of reach of children and away from direct sunlight Not suitable for human use Made in the Netherlands