The key features are:
Screw locking mounts for each instrument head to allow secure connection to the battery handle "C" Cell powered. Stain Finish chrome batter handle Rheostatic on / off switch Total attachments 13, these features of each instrument are below:
1. Otoscope
a)  Chrome plated otoscope head with removable 4x magnifying lens and inufflator fitting
b)  2 Bottles containing 20 spear mini specula size 2.5 mm to 4.0 mm
c) Nasal speculum adaptor with manual screw opening for instrument connected to the otoscope head
 
2. Opthalmoscope
a)  Opthalmoscope head with lens wheel featuring 25 corrective lens from -25 to +40 diopters
 
3. Bent Arm Illuminator
a) Chrome plated bent arm larynx with a bulb  
b) Laryngeals Mirrors (size 3 & 4)
d) One tongue depressor
4. Light weight leather case with zip around