Description: Personal water filter will provide safe drinking water without using chemicals, iodine, can removes 99.9999% of bacteria including Escherichia coli (e-coli), campylobacter, vibrio cholera, pseudomonas aeruginosa, shigella, salmonella, removes 99.9% of protozoa including giardia lamblia, cryptosporidium parvum, entamoeba histolytica Pump pressing to add water design, multi filtering layers, with connection part for hydration pack and water bottle, convenient to add water, lanyard carry strap, portable, ultralight, can on your backpack or waist belt, max extendable length is 24cm Detachable filter element, easy for ce or replacement, long service time Requires no electrical power, batteries or replacement parts. BPA free, chemical free Outdoor emergency survival tool for camping, hiking, backpacking, climbing, hunting, mountaineering, cycling, trekking, snow ice walking, and other outdoor activities Specification: Material: ABS Size (L x W): Approx. 18.5x3cm / 7.3x1.2 inch Max Length: Approx. 24cm / 9.4 inch Package Includes: 1 Piece Water Filter Note: Please allow slight size deviation and slight color difference.