I loved this Ab roller until one day it rolled away. I'm not for sure how it went missing, but someone else besides me probably has rock-hard abs now. It was really stable with the thickness of the roller.
I was so happy to pass this bar along to a friend and upgrade to a rackable curl bar from Rogue. I use it so much more and can superset with it much easier and change weight quickly. But overall it served it's purpose.