Le Rayon Wire Binding Machine ECO one handle, press handle down for punching, puch handle to the back for wire closing.Binding material: double wirehard plastic ringBinding thickness: 14.30mm (double wire)Punching capacity:15pages(80gsm)Max.Binding width: 300mmHole distance:8.47mm(3:1), 34holesHole spec.:4x4mmPunching form: ManualProduct size: 430x320x180mmMaterial: shell, base and handle are all made of Aluminium