These are THE BEST doggie poop bags anywhere!  I have a LARGE dog; you can imagine the rest of this statement.....the GREAT thing about 'Mutt mitts' is that they are DOUBLE STRENGTH and thickness where your hand is picking up the doggie do-do!  These are the best, most durable and thickest bags I have found...I've bought them for 3 years, and their thickness (weight) has not changed....amazing!!!