they work but wish there was some way to label them [SEP] these are nice little silicon bottles they meet the tsa requirements we had no issues traveling with them through security no leaks they have a rubber topper on the hole to prevent leaks which is nice i have other silicone bottles with that same feature but with those you have to apply so much pressure to get the shampoo or soap out of the bottle that you end up squirting out way more than you want these bottle are much easier to control and squirt out the exact amount you want they are also flexible so you can kind of squish them into place as neededmy only quibble is that there is no way to mark what is in each container so we forgot whose shampoos and conditioners were in each bottle i mean we figured it out based on smell but it could have been easier