Dimensions approximately: 500 * 500 * 1200, many pinholes drilled plate, the needle inserted into the holes, because the formation of needle depth changes at different levels of the shadows, lines and shapes showing Wuhan Star Popular Science Technology Co., Ltd. Main products include : science exhibits, teaching equipment, experimental box, Science and Technology Museum building, children's play equipment, laboratory construction, primary and secondary general education equipment, science museum exhibits, multimedia teaching vocational equipment, warmly welcomed around the dealer or professional bodies with us companies to jointly develop the market and contribute to science and education. Product specification style can be customized, please call us