This smart notebook combines the advantages of traditional paper notebook and digital device, which gives you better writing experience, better storage, convenient classified management and quick search. It is erasable and can be used repeatedly, paper saving and eco-friendly. Great for you to write, draw, sketch and just write down your sudden flash of inspiration. Features: The notebook is designed with high-end PP cover, loose leaf coil for convenient detach and a slot for holding pen. It can be erased by wet cloth or heated in microwave oven(Put a cup of water), allowing over 500 times writing. Sync your writing to APP storage, with functions of auto content scan, image distortion correction and effect enhance. APP storage adopts clear file management, very easy for you to search desired content. Support optical character recognition, transform image format into words quickly. Specification: Condition: 100% Brand New Shell Material: PP Color: Black Size: A5, B5 (Optional) A5: approx. 20.5*14.8cm/8.07*5.83in B5: approx. 25.5*18.5cm/10.04*7.28in Pages: 50pages (A5), 30pages (B5) Weight: approx. 252~300g / 8.9~10.6oz Package List: 1 * Reusable Notebook 1 * Pen Note: 1. Please allow 0-2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.1The notebook is designed with high-end PP cover, loose leaf coil for convenient detach and a slot for holding pen 2It can be erased by wet cloth or heated in microwave oven(Put a cup of water), allowing over 500 times writing 3Sync your writing to APP storage, with functions of auto content scan, image distortion correction and effect enhance 4APP storage adopts clear file management, very easy for you to search desired content 5Support optical character recognition, transform image format into words quickly