1. Long and quick size. 2.. Choice of model with unmarried nozzle and model with twin nozzle. three with dual nozzle is available in our Russia warehouse, spain warehouse, US warehouse. 4. We have ourselves warehouse in Moscow of Russia and native workers, can provide you larger before and after-sale service. Model 3 with Rotating button Advantage: 1. Standard size: 510mm*380mm. 2. Colorful rotating button. 3. Arc-shaped entrance suits some sq. toilet. 4. Choice of seat without auto open function and with auto open function. Colorful clever Knob - One button to complete functions- hip wash, female wash, drying and stop, shade of knob adjustments with function replacing Remote management Open and Close Cover Automatically There are two open and shut hide - when consumer approaches, cover opens automatically, when consumer leaves, hide shut automatically. - You can close auto-flip functions, and use hand held remote control to control open and close of cover.