I was worried this wouldn't fit our regular paper towel rolls as I didn't want to get into a subscription for paper towels, but they fit perfectly. You really can one hand tear. The only thing is obviously as the roll gets lower the tension on the arm decreases so you do have to use two hands to tear, but that's really nitpicky. Overall, as usual, it's another well thought out simplehuman product. Love that everything is available in matte black!