Beaphar Cat Spot On Flea Drops is a simple yet highly effective way to rid your little kitty of any flea infestations. Quick and easy, this treatment is applied to the back of the cat"s neck and begins work immediately. Use alongside other household flea treatments such as flea powder or sprays, to ensure your home and your cat are fully rid of any parasites. Providing either 4, 12 or 24 week protection, this spot on treatment is suitable for all cats aged 12 weeks and over.