Bamboo is the most environmentally sound plant in the world - sustainable, cost effective, and ecologically responsible. Feeders and houses are made from Cross-ply bamboo that is 5X harder and stronger than cedar. It is resistant to bacteria and squirrels, with no rotting, warping or swelling. Nature's Way Bamboo Platform Feeder #NWBWF3 offers plenty of room for a large variety of birds to come and feed. The removable Fresh Seed tray is made of powder-coated galvanized metal to allow for drainage. Hangs easily from the vinyl-coated steel hanging cable.