正面)手电筒在暗暗的地方
https://1.bp.blogspot.com/-WKBdJHpuMWw/X5aMUWn0IRI/AAAAAAAACL0/vyBLkiPD0HYsHFyb1e0DArx1wRCNM-tCQCLcBGAsYHQ/s800/_MG_9558.jpg
背面)开灯就会照亮手写的字
https://1.bp.blogspot.com/-m_gVzvkJUhw/X5aMUhq_z2I/AAAAAAAACL4/VZ2aewrUhU0ruSHte9s5pLZdl159VdYkgCLcBGAsYHQ/s800/_MG_9565.jpg
字可以写在光中
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双面印刷
用纸：顶级象牙卡
尺寸：14.7 x 10.8 cm
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