All non treated wood . 3 Entry ports for bees to enter. All mounting hardware included. Three mounting options using pre-drilled holes. Simply mount as close to bee activity as possible. No chemicals needed. Once bees start entering trap they leave a scent trail and others follow. When trap fills simply discard all but a few bees. Simple, safe, and highly effective. Pick up only or shipping cost has to be added. Buy 4 at regular price and get a 5th one.