We had shades that stuck right to the window (perhaps through static -- there was no residue or anything like that. Our son is now 5.5, and unfortunately that's all I remember. I wanted to post anyway, though, to caution you about any shade that uses suction cups or other attachments. The suction cups (or other apparatus) can become a projectile in a traffic accident and harm you or your child. It's amazing to see how something as light as a tissue box can become deadly in an accident. Chances are (I hope!) that you will not be in a situation where the suction cups, etc., come into play, but I thought you should know that many professionals caution parents not to use these types of items for this reason. That's why we went with the static cling ones. It's possible that we found them at Right Start, but the only static cling shade I see on it right now has a foam roller, which could also become a projectile in an accident.