The pen holder can hold 7-8 pens. A pen or pencil should not be more than 7 inches long. Semi-rigid plastic shell, elastic buckle, easy to open and close, smooth and durable plastic material! The smiling expression on the box can brighten your mood. It is a good helper when you study and work, and also a good gift for friends or children! 7 3/32" L x 2 23/64" W