¡ïExperiment disc: The diameter 25 centimeters, thickness is the 1cm    plastic cushioning,the printing hairline and angle scoring, the smallest     scoring is 0.5 degree.  
 ¡ïSemicircle transparent plastic case: It has the red center of circle     index line,the radius is 6cm,high is 3cm.  
 ¡ïRectangular transparent plastic brick: 25mm¡Á50mm¡Á80mm.  
 ¡ïOne of 15cm metallic tape.  
 ¡ïSix of Bead needle, bottled.
 
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