We have two sets of these tires which we use as a replacement for winter and summer tires and rims. They serve several useful purposes, which I appreciate. First, they make it easier to move the tires. The handles are strong and no problem getting them from my basement. Second, they are clean. I don't get dirty, my car doesn't get dirty. My house doesn't get dirty. Third, they remind me which tire is which with very clear markings. It's much more reliable than my dealer's chalk markers. However, there is a small downside. The slots that hold the card to indicate which tire it is (like front left) are a bit loose and the cards can easily fall out if you or the installer aren't careful.