Seresto Flea & Tick Control Collar is the longest-lasting single application flea and tick protection available giving you piece of mind for 7-8 months as one collar is all it takes to keep your cat protected.This collar is able to kill fleas within 24 hours and actively repel and kills ticks through contact so no bite is required for it to work. This means reduced distress and irritation for your cat and also reduces the risk of these parasites transmitting diseases which gives you peace of mind that your pet is well protected.Key Features: Clinically proven to be effective against fleas and ticks for 7-8 months Kills fleas through contact and repels and kills ticks before they bite your pet Water-resistant Odourless Targets: Fleas and ticks Suitable for all sizes of cats How to apply: Remove the collar from the protective bag directly before use. Unroll the collar and remove any remaining plastic connectors on the inside of the collar. Adjust the collar around your cat’s neck without fitting it too tightly (as a guide you should be able to insert two fingers between the collar and the neck). Pull excess collar through the loop and cut off any excess that extends beyond 2cm. Check periodically and adjust the fit if necessary especially in kittens that are growing.