Bi office white portable duo board amp flipchart easel product overview bi office white portable duo board amp flipchart easel ea4724075 attach a flipchart pad to the adjustable clamp for an effective flipchart easel or write directly onto the dry erase whiteboard surface on the other side you can affix posters and notes to the felt noticeboard surface with pins the solid aluminium frame sits on four castors for great mobility they can be locked when not in use to keep the board secure