Supplies: Nylon The bags are a little smaller than some of the others we tried using. Testers with larger dogs experienced problems tying the bags as soon as they were full. Some testers, having said that, really appreciated the appear of your black bags. Tester Insight: These Pet waste https://dogpoopbagsamazon96172.blogerus.com/51162859/petlaud-poop-bags-an-overview