All the products are made from a mix of recycled agricultural materials and resin.|The mix is between 60% 70% waste material & 30% - 40% resin.|The resin gives the product its shape, strength, and durability.|The products on the display are suitable for a wide range of bird seed mixes.|The natural colour of the products comes from the waste material used.|Chaff, Coffee, Nut and Straw are the 4 recycled agricultural materials.