This heavy-duty professional bike-handle trimmer has a low exhaust emission engine and good power-to-weight ratio. Landscaping professionals looking for a simplified and convenient trimming solution will love the STIHL FS 131 trimmer. With its low exhaust emission, 36.3 cc engine and a larger fuel tank than the previous model, the FS 131 delivers 30% longer run times. Its bike-handle design includes rubberized grips for enhanced grasp and comfort. Improved air filtration and the STIHL exclusive IntelliCarb™ technology make this trimmer a great choice for pros, but the cherry on top is the solid steel drive shaft that accepts a wide range of heavy-duty cutting heads, including metal blades. Note: Not available for purchase or delivery in California Specifications Displacement 1.7 cu-in Blowing force with round nozzle 13 N 1) Device weight without refuelling 8 lb Max. air velocity with round nozzle 159 mph Air throughput with round nozzle 412 cf/min Sound pressure level 15 m distance 70 dB(A) 2) 1)Force in Newtons (N) to compare the performance of blowers2)Measured according to ANSI/OPEI B175.2-2012 (R2019)