SPER Scientific Lab Pen Uv/Laser/White

SPER Scientific Uv/Laser/White Light Pen, 3-1/4 X 1/2 In, 400nm Uv Wavelength, 650nm Laser Wavelength, 1.3 Oz Weight, With Four Button Cell Batteries, Keychain, On Pressing One End Of The Pointer Button Bright 650nm Red Laser Light Is Got, On Pressing The Other End A High Intensity White Led Light For Inspection And Illumination Is Got, On Pressing The Same Side Again 400nm Uv Light Is Got, Sturdy Construction, Used As A Teaching Tool For Science Presentations, Conferences, Lectures, Seminars, Planetariums - SPER