Dot&Dot Leak Proof Travel Bottles for Toiletries - 4 Pack Silicone Travel Toiletry Bottles - 3oz Shampoo and Conditioner Travel Bottle with TSA Quart Bag - 3 oz Travel Bottles with Labels

Warning: Incorrect placement can cause leaking
Make sure the silicone is securely placed around the collar rim, then twist the cap clockwise before you put them in your TSA bag to avoid leakage.
Do not overfill your bottles. Fill only about 80-90% of the capacity and squeeze out air before screwing the cap on to avoid leaking.
Quick squeeze to dispense a small amount of liquid. The longer you squeeze, the more fluid it will dispense.
It is recommended to test small amounts in a Dot&Dot bottle overnight before using. If a liquid dries up a short while then know that it is not compatible with the product.