1. Product Description - Material: Plastic - Size: 21*2.5CM - Quantity: 1 piece - Packaging Content: 1*Emergency Survival Drinking Water Filter 2. [Our Life Solution] The water filter straw is a camping item and equipment with a 4 - stage filtration function. The full - fiber membrane can block solids and form a larger membrane filtration space. The elastic strength of the membrane can remove up to a small amount of raw water. 3. [Proof in the Filter] PP cotton can remove various unfavorable particles and other fine substances. Activated carbon helps clean various impurities and improve the taste of water. To further ensure the cleanliness of the water directly obtained from our camping water filter straw, the active adsorption technology is used to absorb small components in the water and prevent the invasion of dangerous elements. 4. [Confident with Every Drop] This camping essential water filter can provide clean and safe drinking water. Compared with other camping equipment, it can remove foreign objects as small as 0.01 - micron pore size from the water, while maintaining the optimal flow rate and the filtration accuracy of this hiking equipment. 5. [Get Prepared at No Extra Cost] The survival equipment straw will take your filtration experience to the next level. 1) Reservoir - Fill the water bag before leaving the water source. 2) Body Posture - The 7 - inch water pipe allows you to drink water without lying on the ground. 3) Backflush - Clean all dirty fibers with the backflush syringe. Don't forget to connect the straw to various standard water bottles. 6. [Ultra - Light, Suitable for Any Adventure] It is a lightweight and portable camping accessory that can be held in the hand, put in the pocket or bag, and can be used as a backpack accessory. It is ideal for hiking, camping, and traveling. Always be prepared for emergencies. Equip your survival gear with a lifeline. The emergency kit will help reduce fear, anxiety, and losses in situations of water shortage and other critical conditions.