This water filter straw works well in removing bacteria in the water to provide you with safe and secure water. They are suitable for outdoor activities such as camping, hiking, backpacking, cycling, etc. What are you waiting for? Just come and buy it. Features:Lightweight and practical water filtering system. It removes aqueous bacteria and parasites and reduces turbidity. Purify up to 2,000 liters of water, down to 0.01 microns, it will meet your daily needs. The ergonomic h-ead suction cup, multiple ultrafiltration film design, offers oil-free water. Bottom thread design, you can connect it to the kettle directly. Durable ABS and P P material ensures long service life. Equipped with 1 * retractable straw and 1 * sling, convenient to use and easy to carry. Perfect for outdoor activities such as camping, hiking, backpacking, cycling, etc. Specifications:Color: Cyan/Army Green/S-ky Blue (Optional)Material: ABS+P Sliding Straw: 180mm Dimension: 180*23mm / 7.1*0.9in (Length * Width)Package Size: 200 * 50 * 28mm / 7.9 * 2 * 1.1in (Length * Width * Height) Package Weight: 70g / 2.5oz Notes:1. Do not take the first sip of water.2. Do not collect saline and chemically contaminated water.3. Do not put it in the microwave. Packing List:1*Water Filter Straw1*Slings1*Straw