1. Long and quick size. 2.. Choice of mannequin with single nozzle and mannequin with twin nozzle. three with twin nozzle is supplied in our Russia warehouse, spain warehouse, US warehouse. 4. We have ourselves warehouse in Moscow of Russia and native workers, can give you bigger earlier than and after-sale service. Model 3 with Rotating button Advantage: 1. Standard size: 510mm*380mm. 2. Colorful rotating button. 3. Arc-shaped front matches some square toilet. 4. Choice of seat with out auto open operate and with auto open function. Colorful clever Knob - One button to complete functions- hip wash, feminine wash, drying and stop, coloration of knob adjustments with operate replacing Remote control Open and Close Cover Automatically There are two find out how to open and close cover - when person approaches, hide opens automatically, when person leaves, conceal shut automatically. - You can shut auto-flip functions, and use handheld remote control to manage open and close of cover.