This unique Deluxe Round Bird Feeder is made with Straw. The Earthy Sustainable line processes agricultural waste blending it with resin. A lot of time energy and water goes into growing crops yet most of the plant goes unwanted and would normally be burnt releasing harmful CO2 into the environment. Instead the waste material is processed to create Earthy sustainable products. None of the ingredients are grown specifically for Earthy. The unwanted parts of commercially-farmed crops are used to make our feeders. These products are frost proof and suitable for outdoor and indoor use. Lifespan 2-3 years. Dimensions are 8.6″ dia x 7.5″H.