Survival Gear for Outdoor Water Needs - If you want to obtain drinking water simply and quickly, you can use this survival gear. The mini and lightweight filtering system are ideal for recreation, hiking, camping. It’s also your good companion for scouting, domestic and international travel, emergency preparedness. Portable & Long Life-Span - This straw filtration at only 7.1'' long and 1" in diameter fits any 28mm threaded bottle, cup, or glass. It weighs just 2 ounces and fits in the palm of your hand, pocket, gym bag, backpack, survival pack or purse. Both ends of the Upgrade water filter straw are removable for extend Longer Lifespan ensuring it provides up to 1,320 gallons (5,000 liters) of drinking water. Don't miss this opportunity to drink water conveniently wherever you go. 5-Stage Filtration - Our Upgrade 5-Stage Filtration System includes a coarse filter screen, double layer pp cotton fiber, coconut shell activated carbon and hollow fiber ultrafiltration membranes. Ensuring the water in the worst environments.(IT DOES NOT LOWER TDS VALUE, ensuring water's essential mineral balance remains untouched.) Smaller Pore Size - We all know that the smaller the pore size, the higher the filtering accuracy, our pore size is 0.1microns. Compared to the 0.2-micron water purifier straw on the market, Membrane Solutions 0.1 microns pore size water purifier straw maintains the optimum flow rate (16.9 fl oz/min / 500ml/min) and a high filtration accuracy at the same time. High-Quality Materials & Versatile Filtering Modes - Made of durable food-grade plastics, manufactured with BPA-Free ABS, ensuring quality drinking water. Compared to the big filter straw on the market, Membrane Solutions water filters have a smaller frame, more convenient to use and more filtered modes, ideal for connecting with a soft water pouch or disposable water bottle, even as a replacement gravity filter to get water for family & group. Product Name: Personal Water Filter/Water Purifier Survival Straw Package: 1 Pack, 2 Pack, 4 Pack, 6 Pack Color: Classic Orange Product Dimension: About 17cm*2.5cm*2.5cm Weight: Around 2 ounces, Ultralight Suitable for: Camping, Hiking, Backpacking, Domestic and International Travel, Hotel, Survival Kit, Emergency Preparation, Military Gear, Hunting, Fishing, Scouting, Outdoor Adventures, High Alpine Forests, Wilderness and more. What can be filtered: Municipal Water, Lakes, Muddy Water, Rain, Snow, Stream, Tap Water (Can't filter seawater). Note: 1) Color may vary slightly due to the color setting of each individual monitor. 2) Picture shown is a representation of the item, you'll receive from the available lot. Storage condition: These water filter straws should be stored in a dry and venting place in order to extend shelf life.