An excellent hand held spectroscope for viewing the spectra of many different light sources. Durable construction with compound prisms and converging lenses made of high quality optical glass. Additional Info: An excellent hand held spectroscope for viewing the spectra of many different light sources. Durable construction with compound prisms and converging lenses made of high quality optical glass. Package Size(L x W x H): 4.25 X 1.4 X 1.25 (IN) Categories: Test Equipment, Spectrometer HTS Code: 9027.30.8020 UNSPSC: 4.11154e+007 Country Of Origin: CHINA