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 6.7" long and 1" in diameter fits any bottle, cup, or glass. It weighs just 2 ounces and fits in the palm of your hand, pocket, gym bag, backpacks, survival packs and purses. Long lifespan ensures it provides up to 1500 liters (396 gallons) of drinking water. You can take it anywhere you want conveniently. 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 - Compared to the big filter straw on the market, Membrane Solutions water filters have a smaller frame, more convenient to use. Package:Water Filters 6 Pack Color: Camouflage Product Dimension: About 17cm*2.5cm*2.5cm Weight: Around 70g, Ultralight Suitable for: Camping, Hiking, Backpacking, Travel, Hotel, Survival Kit, Emergency Preparation, Military Gear, Hunting, Fishing, Outdoor Adventures, High Alpine Forests, Wilderness. What can be filter: Municipal Water, Lakes, Muddy Water, Rain, Snow, Stream, Tap Water (Can't filter sea water). 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 straw should be stored in a dry and venting place in order to extend shelf life.