The Pen Loop. Our self-adhesive pen-holder made from sturdy elastic. Whether a pencil, fountain pen or wax crayon, the Pen Loop is suitable for any size of pen. The self-adhesive loop is simply affixed to the inside back cover. So you can carry your favourite pen with your notebook at all times. Details: • self-adhesive • Size: 40 x 40 mm • 15 mm elastic loop