Velcro sandpaper alignment tool

Ever try and align the holes on the dustless velcro sandpaper discs? now its easy and takes 2 seconds and done with one hand... for perfect alignment every time. Just push the sander on to the spindles and the velcro will pick up the next sandpaper in the stack, all perfectly aligned. This is for 5" discs with 4 main holes, although may work with others.