Features:<br />1.special design to avoid sucking backward and blocking<br />2. easy to plug in and out ・clean and sisinfect after use<br />3.360 degree rotation・clean hidden tartar effectively<br />in any part of teeth<br />4. small package<br />5.two holes and Blue color<br />Technical  <br />1. Connection  4-hole<br />2. Water Pressure: 0.05MPa - 0.5MPa<br />3. Air Pressure: 0.2MPa-0.5MPa<br />4. Max. Water flow: 30ml/min<br />5. Max. Powder flow: 2g-3g/min<br /><br />Packing list  <br />1 x Orange Air polisher<br />1 x Spare covers<br />1 x Nozzle<br />1 x Gasket<br />1 x Instruction manual