The Microslide Viewer is a specially designed teaching tool for viewing Microslides, It is a precision instrument made in the USA and is unconditionally guaranteed against breakage for 5 years, The viewer does not require electricity or batteries and can be used outdoors as well as the classroom, The white reflector provides sufficient light for a bright image in normal light of a classroom, A Microslide Viewer is used to view a Microslide which has 8 related 35mm images as photographed through a microscope, Arrows and callouts help students locate important features being studied, The Microslide is mounted in a clear plastic holder that protects both its sides, Microslides cannot be scratched or broken, The photomicrographs are prepared from carefully selected specimens, This unique mounting enable students to study the progressive development of certain processes at their own pace, The Microslide Viewer is also available in a set of 10 and there is a handy durable carrying case to transport these from classroom to classroom, American Educational Products have a lead ship time of 21 days, SKU: AMED1858