¡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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