The Natures Way Bamboo Wren Hanging Bird House (BWH1) is made with solid cross-ply bamboo that makes it more stronger and harder than the regular cedar and cypress wood. It also helps prevent mold and bacteria to keep your bird visitors safe. It prevents it from squirrels too. It also doubles the defense against rotting, swelling, shrinking and warping. It features a removable fresh seed tray and the tray lifts out easy for cleaning. The hanging cable is made from steel with vinyl coating. It has a water based protective stain making it last for a long time.