The Ryobi OLT Series One Plus 1831 line trimmer has a 23cm cut & a rotatable head. The OLT1831 has an extendable shaft to suit the height of the operator. Up to 25 minutes running time. Metal plant protector for delicate flowers etc, auto feed head, pivoting head for trimming under hedges & decks, & on slopes. Specifications: Voltage: 18v Cutting Line Diameter: 1.6mm 45 minute charging time Weight: 2.3kg