If you read the find prints on the roller they will read, SUPER SMOOTH ROLLER or ULTRA SMOOTH ROLLER, lol yea kinda cheesy but thats what they say here in my HD. I saw the yellow one too and it said it was just a normal foam roller, there were other foam rollers but they were either smooth or fine and the third but not the least tucked away on the very top row was "ULTRA SMOOTH ROLLER"