Great attachment, the roller pads are nice and stiff, they don't slide off like other attachments I've used, the only issue i have with it is the hinge bolt sticks out quite a bit and hits the inside of your thighs, I have not had many issues but my wife and others have bruises from it, going to look into trimming the bolt and finding a rubber cap or something to cover the bolt head. The attachment is smooth operating and very sturdy, very well made.