Clear Keep2Go Camping Travel Container 2-pack Waterproof Durable Food-safe The Keep2Go is a portable extremely durable plastic tube that can be used for different purposes. The tubes have a screw-on plastic cap that has a hole to thread a lanyward or a cord All the models are TSA safe and can be used to transport liquids on a plane The containers can be also used to store food and are dishwasher safe, they float but not if you fill them with something heavy. Multipurpose plastic containers are useful for small kits, for liquids and medications and are helpful when you are outdoors and can be quite practical for swimming while holding some essentials like cash.