1、100% new high quality. 2、Writing experience, intelligent APP management, waterproof, mildew and anti-corrosion function, APP intelligent OCR recognition function. 3、Heat to remove the word function and repeat the writing 500 times. The notebook is soft and free to bend. 4、It can replace the refill design and increase the writing endurance. It only takes a few simple steps to change the core, so you don't have to worry about no ink. 5、Sen Rock Our natural materials are healthy and environmentally friendly. We use low-carbon attitude to feel life. The process does not use wood pulp, no water, no bleach, strong acid and alkali, etc. It is non-toxic and harmless to the human body. Long-t Features: 100% new high quality. Writing experience, intelligent APP management, waterproof, mildew and anti-corrosion function, APP intelligent OCR recognition function. Heat to remove the word function and repeat the writing 500 times. The notebook is soft and free to bend. It can replace the refill design and increase the writing endurance. It only takes a few simple steps to change the core, so you don't have to worry about no ink. Sen Rock Our natural materials are healthy and environmentally friendly. We use low-carbon attitude to feel life. The process does not use wood pulp, no water, no bleach, strong acid and alkali, etc. It is non-toxic and harmless to the human body. Long-term sunshine can decompose orange. It can be recycled and recycled. Specifications: Condition:100% Brand New Color: Champagne, Brown, Black(Optioanl) Size: Approx.21cm/8.3in(L) Package List: 1*Notebook 1*Pen 1*Paper Box Note: Because there was a manual measuring ,the size may has 1-2cm/inch difference. The color may be slight different due to the condition or light or different monitor.