QUICKLY CONTROL ROACHES FOR HARD-TO-REACH PLACESThe roach repellent will start working in hours. Apply it for hard-to-reach places such as cracks and crevices. Address existing roach problems effectively, you won't see annoying roach in your house any more. LONG LASTING CONTROLPrevent roaches from returning for a long time and the effect lasts up to 30 to 90 days. Note: It is recommended to replace the cockroach repellent in time. REPELLING ALL SIZES OF ROACHThe cockroach deterrent is effective on various roach species, fast control of even large roaches. It can reduce cockroaches significantly, ensuring your home remains a clean and comfortable environment. EASY TO APPLYRemove the tube' cap and screw in the attached needle; cut the head of the needle, apply the roach repellent to the place where the roach might pass by. SAFE FOR INDOOR USEOur cockroach repellent can be inside your house without any problem. Easy to used underneath kitchen sinks, behind washers, close to drains, or at pantries, garages, cabinets etc.