1. Long and short size. 2.. Choice of mannequin with single 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 give you larger 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 sq. toilet. 4. Choice of seat with out auto open function 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 function changing Remote control Open and Close Cover Automatically There are two open and close hide - when person approaches, conceal opens automatically, when person leaves, cover close automatically. - You can shut auto-flip functions, and use remote control to manage open and shut of cover.