Benefits:- Effective treatment and prevention of fleas on cats for 3 months. Kills pre-existing and new infestations of paralysis ticks (Ixodes holocyclus) for 10 weeks.Effective prevention against heartworm for 2 months. Treatment and control of roundworm and hookworm. Treatment and control of ear mites. Safe for use in kittens from 9 weeks of age, weighing at least 1.2 kg. One fuss free spot-on treatment covers beyond the length of the average flea life cycle, providing rapid and persistent protection. Effective against fipronil-resistant strains of fleas. Newly emerged adult fleas on a cat are killed before viable eggs are produced. 3 convenient weight ranges for cats from 1.2 12.5 kg