Welch Allyn 97200-BI Portable Elite 3.5v Set with a C-Cell Handle.

Handles include metal-metal connectors for durability and accommodate over 20 Welch Allyn diagnostic heads eg; Skin Microscope, Transilluminator or Sigmoidscope.

Unique coaxial ophthalmoscope allows easy entry into the eye and shadow-free viewing of the retina
Halogen HXP bulb gives 30% more light than halogen for truer tissue colour
6 apertures (small, medium and large spot, target, slit and cobalt blue) plus red-free and polarising filters
18 aperture combinations and 28 lenses give diagnostic flexibility and excellent resolution.

Double-sealed, dust-free optics prolong life of instrument
Comes in a hard shell case with 4 reusable specula.