Usage Tips:Practical design: the board comes with slim, durable and polished metal clips, strong and durable springs, hidden hanging clips for easy storage of documents. Well made: the board has a smooth wood-grain finish and burr-free rounded corners, so you don't have to worry about too-sharp edges as you write smoothly. Heavy Duty Paperweight: The paperweight -premium paper is made from sturdy cardboard, making it ideal for heavy use and durable. Wide Use: These sturdy and lightweight notepads can be used for writing and jotting down on your phone, ideal for school outdoor study projects, hospital records, daily office work or labs, and more. A4 size: the size of the press- papers is: 31.5 x 22.5cm, the metal clip is 10cm long, can easily hold standard A4 size paper, quickly protect important documents in a mobile environment.