Product Name: Personal Water Filter/Water Purifier Survival Straw Package: 1 Pack, 2 Pack, 4 Pack, 6 Pack Material: BPA-FREE, Food- grade ABS plastic Color: Classic Blue Product Dimension: About 17cm*2.5cm*2.5cm Weight: Around 2 ounces, Ultralight Suitable for: Camping, Hiking, Backpacking, Domestic and International Travel, Hotel, Survival Kit, Emergency Preparation, Military Gear, Hunting, Fishing, Scouting, Outdoor Adventures, High Alpine Forests, Wilderness and more. What can be filtered: Municipal Water, Lakes, Muddy Water, Rain, Snow, Stream, Tap Water (Can't filter seawater). Note: 1) Color may vary slightly due to the color setting of each individual monitor. 2) Picture shown is a representation of the item, you'll receive from the available lot. Storage condition: These water filter straws should be clean and stored in a dry and venting place in order to extend shelf life.