The ART 26 Combitrim?s powerful motor and innovative ?combination? cutting system allows selection of a line to suit lawn edge trimming, or cutting back stubborn overgrown areas with ease. The easy, grip, height adjustable telescopic handles ensure minimal effort in the process. Power Source: The electric ART 26 Combitrim is powered by a ?High, Power? Bosch motor with up to 450W to provide constant use and faster results. The Cutting System: Complete with 2 versatile, spools: one for normal grass and one for tougher conditions. To lengthen the line, simply bump the spool to the ground and this will release more line for continuous, effortless, precise trimming of your lawn. There is an additional spool holder under the handle for the extra strong line for convenience with a simple ?click? spool replacement.