SIZE: Snack Bags: 6.5x5.9 inch (16.5x15.0cm), 150 count, extra thick MATERIALS: 100% compostable, disposable kitchen food storage bags. All Earths Natural Alternative freezer bags are BPI Certified compostable, meet ASTM D6400, D6868 standards. Forty-five days to fully compost at municipal and industrial composting facilities home composting time may vary from home to home. Earth Natural's premium compostable food waste bags are made from quick-growing, sustainable, and renewable vegetable starch like corn starch. FEATURES: ENA heavy-duty resealable bags contain NO polyethylene. They are unbleached, durable, non-toxic, BPA-free, and plastic-free. Storage Tips: Avoid direct sunlight and moisture environment Plastic Resealable Bags Vs. Earth's Natural Alternative: Compared to plastic resealable bags, our eco-friendly products are comparable in size and sturdiness, freezer safe, but reduce single-use plastic, decrease waste in landfills, reduce harmful residue in the environment. Save our planet. Better for you, better for the earth.