A really good storage system for your liquids. Shampoo, soap, ketchup or mustard - everything is kept safely, leak proofed and easily portioned. The tubes have folding lids and disperse the contents when compressed. Dripping is prevented by a silicone lip at the hole. The lids are removable for easy cleaning and filling. Turning the lids displays gradations for the liquid levels. The tubes are made of best silicone and are extremely flexible and robust. Equally, they are perfect for the current flight regulations. The model '2018' offers some helpful news: the new LoopLockTM, which is over 20 times more resistant to leaks and accidental opening than competing bottles. The LoopLock can also be used to hang the GoToob+ from a hook or to clip it to the outside of a pack. And theres a new textured area to write in the contents as well as a 25 % larger opening for easier filling and cleaning. Not suitable for fatty products.