Agree with Andrew. I would add protect the panniers and your knees. I now have the oem replacement (cheapest ones I sell) on my own bike. They are not as robust, but if I happen to drop the bike in the garage and they get scratched, no problem, I just pop new ones on cheap. Had two of those oopsies in my life. Don't ever move your bike around wearing flip flops, lesson learned. On the first oopsie I had to ask my mother in law to help me pick it up because there was no one else around and I couldn't do it. I was amazed by the superhuman strength of this fragile looking Czech woman of advanced age, and what's more she immediately went into the correct lifting position, turning her back to the bike and lifting with her legs - and that was a Road King she helped me pick up. It has become a family legend, much to my embarrassment.