5 Pcs/set 3D Book in Chinese Copybook For Calligraphy Handwriting Children kids writing Book Learning Chinese Practice Books First Grade Second Grade Third Grade First Semester Second Semester Chinese Synchronized Practice Copybook Grooved Four Five Six P

2 Pcs/set 3D Book in Chinese Copybook For Calligraphy Handwriting Children kids writing Book Learning Chinese Practice Books1. Commodity list: 2 font 20 refills 2 pen holder 2 pen holder 2.1-3mm error due to manual measurement 3. Copybook will fade automatically and can be used repeatedly 4.15 minutes a day, good writing habits