Blue water bag 4-set: 2 kinds of capacity, 10L (15.1x16.3 inch/38.5 x 41.5cm, unfolded without water) and 5L (11.81 x 12.99 inch/30 x 33cm, unfolded without water), you can have two sizes in one time, good for you use on different occasions 5L / 10L water carrier in Blue & Clear, large capacity leak free. Durable, reusable and long service life. Space saver - collapsible. You can roll it up when you don't use it. BPA FREE, safe and non-toxic Ideal for household, camping, garden, cemetery, vacation, hiking, hunting, travel, outdoor, car, picnic, barbecue, BBQ, etc. Specially designed for kids to bring water. Easy to carry - Large screw cap closure with handle. Wide bottle lip - easy to fill and pour out. Folds down flat when not in use and stands up when full, sits on a table top as a water dispenser.