Emergency Drinking Straw—Portable outdoor emergency survival gear for hiking, camping, traveling, hunting, and fishing. Get clean drinking water quickly, anytime, anywhere This water-filtering straw is ultra-lightweight and durable, weighing less than 5.64 ounces (160 grams). You can take it anywhere—it’s easy to store, fits in your backpack, or can be worn around your neck, so you can have it with you wherever you go. Take it with you and embark on your next adventure Get reliable, clean water anytime, anywhere: This essential camping water filter provides 1,500 liters (396 gallons) of clean, safe drinking water. Compared to other camping gear, it filters particles as small as 0.01 microns while maintaining an optimal flow rate of 550 milliliters per minute without compromising filtration precision This survival straw will enhance your filtration experience. 1) Water reservoir: Fill the reservoir from any water source before you set out. 2) This water-filtering straw has a shelf life of up to 5 years. We take customer satisfaction very seriously. If you’re not satisfied with our product, we offer free returns and exchanges