These were quick and easy to install, and the operation couldn't be easier. One gentle tug, and they retract right up to the top. These are truly cordless, unlike some other "cordless" shades I bought on another site that still had strings on the reverse side. There is neither an operating cord nor strings on the back side of these shades, just a pull handle at the end of a flat piece of fabric that makes the shades operable. I feel 100% comfortable having these in my young son's room and will be buying more soon for my other kids' rooms.