I bought a pair and a FAILURE (see 1st photo) after just 39 days. I measured with a digital scale and the item hanging from it was LESS than 2.46 OZ. It was one of two and the other is still holding a slightly heavier item. But now I have to look for a replacement (not plastic) because I'm not sure if it won't happen to someone else. If you can't tell (2nd photo), the circled part was where the arrow is pointing. As intended, there is now no way to maintain suction. more garbage. live and learn