76*6.* Features: relax the cervical spine, improve sitting posture, free hands, stay away from myopia, adjustable bookshelf, take notes while reading, easy learning, double the efficiency, meet the needs of different scenarios* Size: about 20.15kg* Imported.
7cm/8.* Features: relax the cervical spine, improve sitting posture, free hands, stay away from myopia, adjustable bookshelf, take notes while reading, easy learning, double the efficiency, meet the needs of different scenarios* Size: about 20.7*15.