Our buckram covered clamshell boxes are made using 3mm high-density board. We can custom-make in a wide range of colours and sizes. The ultimate way to display your works of art and presentation needs, our clamshell boxes are designed for durability and acclaim. These handcrafted boxes will be admired by many and can be personalized if required. Suitable to be used with mylar enclosures. It measures 310*430mm internally and is 30mm deep. Suitable to fit A4 Mylar Sleeves and A4 card support.