Robust design for professional use, with die-cast aluminium bearing housing and 2.5mm orbit for a fine finish. Specifications: Sanding surface W x L: 112 x 230mm. Orbit diameter: 2.5mm. Orbit speed: 15000opm. H&L paper W x L: 115 x 230mm. Clamp paper W x L: 115 x 280mm. Weight 2.7kg.