Beaphar VETOpure Flea Collar for Cats contains natural plant extracts, including margosa and lavender, to repel fleas from cats for up to 12 weeks. This collar should be used as part of an effective flea control programme. Fleas will often infest the pet's basket, bedding, and regular resting areas, including carpets and soft furnishings. It is recommended that these areas are treated with a suitable household insecticide, like Beaphar FLEAtec Household Flea Spray, and vacuumed regularly. This plant-based preventative collar contains natural plant extracts including margosa and lavender. For best results, use early in the season before fleas are seen. Complete with a safety link, designed to stretch if the cat gets caught while out and about, enabling them to slip their head out. This is a comfortable & adjustable 35cm collar. The properties of the collar will not be affected by water or moisture. Suitable for cats and kittens over 12 weeks of age.