XHCÂ²â„¢ cutter technology outlasts single blade models by up to 12x. Tip Saver Technologyâ„¢ prevents over-sharpening, extending pencil life. Oversized rubber handle makes classroom sharpening easier for kids. Eight-position guide accommodates most pencil sizes. Dual cutters. Large shavings receptacle. Wall mount screws and table clamp included.