PoopBags 4ROLL009 Dog Waste Bags (Pack of 4), Green Meets ASTM D6400 standard for commercial composting Large at 9" x 13", thick and leak proof holding water for 7 days. Silky smooth, yet strong and puncture resistant 15 poop bags per roll, 60 poop bags per box These bags meet ASTM D6400 standard for commercial composting They are large at 9&#034; x 13&#034;, thick, and leak proof; holding water for 7 days. Silky smooth, yet strong and puncture resistant 15 poop bags per roll, 60 poop bags per box