- KILLS FLEAS QUICKLY - treats and prevents flea infestation on cats and kittens 8 weeks of age and older.
- STOPS RE-INFESTATION - Crossblock II kills re-infesting fleas within 2 hours of application.
- BREAKS THE FLEA LIFE CYCLE - Each treatment prevents flea eggs and larvae from developing into adult fleas.
- REMAINS POTENT - Crossblock II is waterproof once applied to ensure cats remain safe in any condition.
- LONG-LASTING BENEFITS - Each treatment is effective for 30 days, which means this 3-pack will keep your cat protected for 3 months with 3 simple applications.