Did I really expected more. The Cap Twister is nothing for adults, since it can only open the bottles, which can also open with your bare hands an adult. For a child, it's been a help. I've done several tests. The bottle strongly turned down and given my wife. The did not make it to open the lid with the Cap Twister I do not. When the lid is properly bolted, then the Cap Twister has no chance to open the bottle. So you get to just the lid, if it with your bare hands is also possible to open the bottle. The Cap Twister is smooth on the inside and when the appropriate lids screwed the lid can not be "gripped tight enough". It simply turns through because the Cap Twister has only one handle and not two, you can also cover the squeeze not. As I said, when the bottle is normally closed, then I do not need a cap twister, because I have to open the bottle so enough force, but screwed in tight, you have no way to grip the lid tightly, the Cap Twister turns simply by , The inside should be rough and have a second handle for squeezing, somehow it was wrong constructed.