Feature:<br /><br />1. 100% brand new and high quality<br />2.  Pen style and portable<br />3.  Built-in light for clearer view<br />4.  Physician Diagnostic Set Includes:<br />5.  Handle: 13.5cm(L) x 1.2cm(D)<br />6.  Otoscope Head With Magnifying Lens<br />7.  Speculum: 3.2cm in length<br />8.  0.15cm and 0.4cm inner diameter at the end opening;<br />9.  1.5cm inner diameter at mouth opening<br />10.  Powered by 2pcs AAA batteries (not included)<br />   <br />Note: Thanks for your understanding that there may be 1-3cm difference on the measurement.<br /><br />Package:<br />1x Pro Ophthalmoscope/Otoscope/stomatoscop Diagnostic Set