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 ring Binding thickness: 14.30mm (double wire) Punching capacity:15pages(80gsm) Max.Binding width: 300mm Hole distance:8.47mm(3:1),34holes Hole spec.:4x4mm Punching form: Manual Product size: 430x320x180mm Material: shell,base and handle are all made of Aluminium