Features: 1. LIFESPAN: Outdoor personal water filter sterilization rate 99.99%, can filter the tiny material, sand, sediments, etc. Built with 0.01-micron ultrafiltration membrane and can provide up to 2000 liters of drinking water. 2. ADVANCED FILTRATION: 5 stage filtration includes pre-filtration system, MIR high poly iodine sterilization resin filter layer, granular coconut shell activated carbon filter layer, carbon fiber activated carbon filter layer, 0.01 micron high previsions hydrophilic ultrafiltration membrane. 3. STURDY MATERIAL: Build out of strong material, filtration accuracy is 0.01 microns, it's portable which can provide you with a reliable source of clean drinking water at any time and anywhere, especially in an emergency. 4. EASY TO USE: Get down close to the stream or lake and use it to drink straight from the source, or fill your water bottle and insert the filter to start sipping. 5. APPLICATION: It's a necessary tool when camping, hiking, mountain climbing, hunting, trekking, backpacking, biking, boating, car rides, outdoor trips, wilderness adventures and so on. Specification: Material: Activated Carbon Color: Purple, Green, Blue Size: 200 x 33mm Filtered Water Capacity: 2000L Weight: 60g Package Included: 1 x Water Filter Straw