Used by control professionals, hotels, nursing homes. Killing the bedbug, fleas, ticks, spiders, cockroaches, bees, wasps, etc. Just put the pesticides powder inside the bulb and squeeze. Residents to effectively killing bedbug through dispersing of the diatomaceous earth duster. Longer brass tube to make easy to reach a narrow gaps. The copper tube and nozzles can be removed. Silicone bulb is durable., Manufacturer: yunestry