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The bottle is designed for any space area. The water is in a bladder and when squeeze can force water to come out of the straw even in zero gravity. The straw is special so that water is not able to escape or allow anything to come in. In order for a person to use the water they have to push a cylindrical object down to allow access to water. If a person wants to close the straw they have to push the cylindrical object up. There's a hole for a person to hook some thing on the their bottle and keep the bottle with them at all times.
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