Dental AIR POLISHER Dentist Teeth Polishing Prophy unit   before airpolishing treatment before airpolishing treatment after airpolishing treatment             This is a dental air polisher tooth prophy (comprise:one air polisher,two spare covers,one nozzle,one instruction manual) product features   Attractive design allows for dexterous handling & manipulation Small and handy, compatible will all 4-hole turbine units 360º rotation assures effective hidden tartar removal Disperses evenly with no splashing Specially designed to prevent backflow and blockage Easy to clean and simple to maintain Easy replacement of working heads   specification and technical parameters   Autoclavable to temperature of 135º   Simple 4-hole connection   Water Pressure: 0.05MPa - 0.5MPa   Air Pressure: 0.2MPa-0.5MPa   Max. Waterflow: 30ml/min   Max. Powderflow: 2g-3g/min     Payment&Shipping   payment   you must have a paypal account before the bidding ,    We only accept paypal as payment methods，    If you want to take other payment method, please email us.    Payment must be received within 7 calendar days after the close of the auction.         Notice  If you purchase several items one time   please let us know.We will send a combined invoice to you for making the payment      if you Return the items in the regeln ,the shipping charge paid of you .who the buyer is Customer Service       Customer service   When submitting a question through eBay,    You may contact us at [email protected]   We answer emails Monday-Friday    (no weekends or holidays). Please be patient!    Return Policy: We allow a replacement, but you should pay more attention on this article：      Please install and operate the items with the guidance from the professional.      otherwise; we will not accept the replacement     Please contact with me first when you decided to send the items back,     and let me know the reasons besides you have to offer the photos of the items        When the items send back， please make sure the whole package in a good condition        The buyer has to offer the shipping cost when the items send back,             and we pay the freight re-shipped