1) High quality acrylic material / ABS laminated sheet 2) Stronger siphon function (12 tennis balls can be flushed away simultaneously) 3) More environmentally friendly without radioactive chemical elements 4) Less heavier than those made of ceramics, more portable 5) More solid, less fragile than those ceramic toilets 6) Stronger dirt-proof function 7) Easy to restored when scraped 8) More water-efficient (3 liters and 6 liters flush buttons) 9) Two national patents (exterior design patent, utility patent) Inner packing: Protective plastic film Outer packing: Grade A water-proof carton& reinforced with wooden pallets