The Enforcer EFT166 Flea & Tick Spray is an all-in-one solution for keeping your pets safe from fleas and ticks. This spray contains a powerful insect growth regulator that inhibits the development of new fleas and prevents reinfestation of existing fleas for up to 100 days. The spray also has a long-lasting effect on ticks, which means you can protect your pet for up to 12 months.