1. Fully made of iron with white paint, strong and durable 2. The unit traps pests on glue paper instead of zapping them with high tension. Pests are captured quietly 3. Quality UV energy-saving lamps ensure a working life of 10,000 hours 4. The glue board does not contain poison or any harmful substance, and fully protects health and the environment 5. The glue board is suggested to be replaced only once per month