The Vetobiol Large Dog Collar (75 cm brown) is formulated with Geraniol, an active ingredient of plant origin, against fleas, ticks, mosquitoes, chiggers, sand flies and lice. Waterproof. Continuous diffusion of the active for about 3 months, without affecting the olfactory sense of the animal. Optimal action after 48 hours. It is advisable to adjust the collar around the animal's neck leaving the passage of two fingers, remove it to cut the unused part, then fix the collar around the neck. Place the excess piece under the cushion (or the layer), in order to benefit from the antiparasitic action of Geraniol in the environment close to the animal. Change the collar approximately every 3 months. Active even in water. Do not swallow. Do not apply to an animal less than 8 weeks old, sick or convalescing. Do not apply to fragile or damaged skin. Avoid contact with the eyes, nostrils and mucous membranes of the animal. In the event of ingestion, in the event of an allergic reaction (hair loss), consult a veterinarian. Wash hands thoroughly after applying the product to the animal. Store in normal temperature conditions (+5 and + 40 ° C).