1.ADVANCED AND SAFE TECHNOLOGY: With Membrane Solutions's advanced safety filtration membrane technology, this filter straw is divided into four stages, including coarse filter screen, Polypropylene nonwovens, coconut shell activated carbon and hollow fiber ultrafiltration membranes. It is able to remove all visible solid sediments,reduce 99.99999% of harmful substances, and improve the odor, ensuring the safest water in the worst environments. 2.PORTABLE: This straw filtration at only 6.7” long and 1.1” in diameter fits any bottle, cup, or glass. It weighs just 5 ounces and fits in the palm of your hand,pocket, gym Bag, backpacks, survival packs and Purses. You can take it anywhere you want conviniently.

Specification: Portable Size: 6.7 x 1.1 inches Filter Accuracy: 0.176 micron FlowRate: 450ml/min Filter Lifespan: 264 gallon Package include: 2* Water Filter Straw（With txtension tube and the lanyard)

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