Specification is as follows : 
Product size : 210 × 285mm  
Inside page: 80 grams white double-sided color, 
Cover: 250 grams double-sided color, one side thick
Softcover

规格如下:
成品尺寸：210×285mm
内页80克本白双面彩色，封皮250克双面彩色，单面哑厚，胶装
