BioBag Pet Waste Bags are made from resin derived from plant starches, vegetable oils and compostable polymers. Sold in packages of 50. BioBags can be readily composted along with organic waste in municipal composting facilities. BioBag products meet the ASTM D6400 standard specification for the labeling of plastics designed to be aerobically composted in municipal or industrial facilities. Please check to make sure facilities are available in your community. Visit www.findacomposter.com.