B-QM survival water-drinking filter straw, the world's top Mini(Pen-size), Lightweight and Mobile(Easy to carry), is the safeesSelf-rescue survival drinking tool for outdoor use. Can purify the river water, rainwater, lake water and other water kinds from nature into direct drinking water1. Special Features: Four-stage filtration system Water Filter contains no chemicals, no batteries and no moving parts to wear out.2. Rapidly Quench Your Thirst: It features a high flow rate3. Convenient in Use: Insert it into water and drink directly4. Safest: thoughly remove bacteria and virus, can eniminate 99.99%5. Size: 22.5*3CMFeatures:SURVIVAL DRINKING FILTER STRAW: The Survival-Straw design is ideal for purifying water from outdoor like river, streams, lakes, ponds, valley, and other contaminated sources. A must for every outdoor travellers It may save your life and refresh you back in many unexpencted conditionsGIVE YOU A BITE OF LIFE-RESCUE WATER: Do not belittle such a small gear, it may save you back to life in various harsh conditions Even for those long-term travel, this tool can help you go further and possible to complete the whole journey. Small but significantTHROUGHLY PURIFYFilters up to 1000 liters of contaminated water without iodine, chlorine, or other chemicals; does not require batteries and has no moving parts. Unlike many similar filters on the market today, Our Rescue Straw can removes a minimum 99.9999% of waterborne bacteria and 99.9% of waterborne protozoan parasites, filtering to an amazing 0.2 microns.APPLICATION: Perfect for outdoor travelling, sports, fitness, emergency, rescue, outdoor exploration, combat, mining, picnic, backpacking, hunting, couting, and emergency preparedness, etcUse Method:1. Absorb water with mouth, absorb water out or spin dry after use, replace the lid2. Life Spam: can purify up to 1000 liters of water, after reach to its life end, the straw will be blockedWarm Tips: Please spit out the first absorb-in waterPlease don't collect saline water or chemically polluted waterNot put it in microwaveFor longer life span, please try to select the water with less inclusionPackage Includes:1 x Filter Straw1 x Syringe1 x Mountaineering buckle