Fairly easy to install, provided you can find a way to reach across your roof -- if you want it to fit snugly around the bar it takes two hands to stretch the neoprene and secure the hook and loop all the way down the bar. Once fitted though, it does the job well and the black color and minimal branding make me feel fine about leaving them mounted for the whole season. I purchased to have an easier setup for carrying a canoe, and for that purpose it is adequate. I wish they offered a bit more padding and were a bit longer. The foam blocks I was using before worked better, but took longer to set up. I think if you are using this for a SUP board or something similar it would be ideal. Make sure that the width is enough for you -- these pads are just barely long enough to reach across the gunwales of my boat. I may try cutting them in half so I don't have to spend time aligning everything just so. See if you can get them on sale -- the full price is pretty steep!