This is a magnetic memo clip; it is made of ABS plastic. High intensity magnet secures to refrigerators and file cabinets. Super holding power clips bags and paper. Heavy duty spring loaded hinge. It is a great promotional item for school, home and office use. Size: 2.75in. x 2.75in.x 1.2in. 2.75" L x 2.75" W x 1.2" H