Hi, John here with the Survival Straw, the only straw you'll ever need. This straw makes it so you can drink dirty or salty water without worry. the straw is around 25cm long with a tighten-able wrist strap for easy transport.
When you suck on your Survival Straw, water is forced through hollow fibres that remove the dirt & semi-permeable reverse osmosis membranes that remove salt from the water.
This straw is available in the nearest Bunnings Warehouse, Anaconda and on our website www.survivalstraw.com for $35.95. And remember drink freely