Product review (1 stars): Deceptive, inconsistent, cheap.
12 piece set? Comes with 8 pieces as stated in the description. Very deceptive. I contacted Amazon on this and they sent another. Also 8 piece.

The rubber is insanely soft and the adhesive tends to pull off of the bottom of the bumpers themselves, seeming to want to stay with the flat bit of rubber they're punched from. One of the two packs were cut crookedly, so three of the bumpers were sliced in half.