Converts from trimmer to wheeled edger; Line diameter 0.065 inch Power drive transmission for increased torque 2 speed control for more power or extended runtime. Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18 Easy feed allows you to advance your line with the push of a button with no bumping required Part of the 20 Volt MAX System; 1 system endless tasks. Power for your style Part of the POWERCOMMAND Family of tools EASYFEED, POWERCUT, POWERBOOST helps solve common user frustrations when using outdoor power equipment. Included components: (1) LSTE523 20V MAX Cordless Trimmer/Edger, (1) LB2X3020 20V MAX Extended runtime Lithium Battery, (1) Charger, (1) AFS Spool, (1) Guard