Features: Modern Water Bottle--good looking transparent water bottle fits your modern style house, and there are optional colors for you to choose, meeting individual taste. Reliable Materials--made of premium AS, it is non-toxic, harmless, safe and durable to use. Effective Filtering Job--quadruple filtering process effectively purifies water(PP cotton layer for holding large particles like sand, ion exchange resin filter against heavy metal, activated charcoal barrier preventing the passing through of harmful compound and organics, and last fine particulate filter). Easy to Use--just fill it with water; total 2.5L water capacity filter offers 1.3L of fresh water. All parts are easy to clean and it is effortless to replace filter. User-friendly Design--non-slip handle is well designed for great hand feel; dustproof water outlet ensures water quality; auto-open and shut water inlet makes fully use of water flow impulse force and requires no manual operation. All makes it convenient to use.