Triple Leakproof: The self-sealing valve in the lid prevents liquid from leaking. The lid stays in place, and there’s no risk of accidentally opening it.Adjustable Content Label: Rotate the movable labels in the neck of the cap to view the contents of the travel bottles.Easy to Use: Easy to refill as the cap screws on wide. Soft silicone body. Easy to fill, easy to squeeze, and then clean and refill.