Features: * Powerful 3.5 amp motor for superior trimming performance in heavy weeds and grass * Converts from trimming to edging in seconds * Head rotates 180 degrees for edging * 12 inch cutting swath with bump-feed spool * Built-in assist handle provides maximum comfort and control * Flip-down edge guide * Cord retention system * 10000 RPM * .065 inch line diameter (replacement spool: model no. RS-136) * Weight: 4.0 lbs. What"s In The Box: * Black & Decker ST4500 12-Inch Electric Trimmer and Edger