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If you were writing on a thick notebook, as your hand move to the right side of the book while writing, your hand will beyond the boundary of the page, and then, it will lose prop immediately, this will lead to uncomfortable writing. The slope notebook has a slope formed by pages on the right side of the book used for propping your right hand for your comfortable writing.
Sichuan University
Chengdu, China
Zhongshan Vatti Gas Appliance Stock Co., Ltd.
Zhongshan, China