The Eliminator Fly Stick is ready to use after purchase and was designed to emit zero aromas. The Eliminator Fly Stick attracts and traps flies, gnats, moths and other flying insects. It is pre-baited and can be hung or placed where flying insects have been visible. The stick adhesive does not contain chemicals. It also does not emit any vapors. The adhesive lasts for months once removed from the packaging. Each package contains 1 trap. The Eliminator Fly Stick can be placed near trash cans & kitchen drains where flies often lay eggs and gather. Use the Eliminator Fly Stick as an effective way to control flies in your indoor or outdoor living space. Contains no insecticides and is not hazardous to the environment. It is an alternative to sprays, liquids and aerosols and the added hook provides versatility in placing the fly stick in garages, barns, porches and offices. Fly catch basin can be removed to avoid water pooling when used outdoors.