100% Biodegradable, Compostable & Neutral in Co2 Emissions. Composed of Corn Starch, Wood From Sustainable Forests with Pefc Certification Produced Using Solar Energy in an Injection Moulding Machine. Mylar Coating is 100% Compostable, Does Not Contain Plastic. Back Plate Comes with Pin Which Must be Removed to Recycle. Minimum Quantity: 100.