I am a professional dog walker so use a lot of poo bags but these are awful. Thought I'd be safe setting off on a walk with a fresh roll of bags but no, every bag I got off this roll was faulty and ripped open so unusable. I've gone through the whole roll and they're all the same, completely open so not a bag at all. Thank God I had a friend with me who had spares on her as these were completely useless!! I have given 2 stars still because the dispenser itself is very very good and durable too.