Description:Survival Personal Water Filter has multiple filtration systems, pure physical high-precision filtration, and the filtration precision can reach 0.01 microns, which can reduce most of the tiny substances and provide you with clean and safe drinking water for outdoor activities.Specification:Name: Survival Water FilterMaterial: ultrafiltration membrane, ABS, silica gelFiltration precision: 0.01 micronsProduct specification: about 40*146 mm/1.57*5.74inNet weight of filter element: about 50 gramsWater quality used: flowing stream water, river water, etc.Packaging List:1* Survival Water Filter1* Water Bag1* Extension Straw1* LanyardNote:The size in the picture is manual measurement, there will be a little error, please refer to the actual product. Due to the lighting effects and shooting angles, there is color difference in the product, please understand.