Automatic feed spool automatically feeds trimmer line when needed; no bumping, no stooping. Easily converts from a trimmer to wheeled edger. Allows you to trim, edge or sweep for a neatly groomed look. Lightweight, low noise and quiet operation. The Trimmer allow you to trim overgrowth after mowing. The Edger allows you to edge along borders, sidewalks and flower beds. The Sweeper is ideal for clearing driveways, sidewalks, decks, garages and other hard surfaces of leaves, grass clippings and other lawn debris. The string trimmer weighs only 4.5 lbs. and the sweeper weighs only 3.7 lbs. The extra battery included makes it great for large yards. The 20 V Max Lithium Ion 1.5 Ah battery holds a charge for up to 18 months. The Combo Kit includes: (1) Cordless Trimmer/Edger, (1) Cordless Sweeper, (2) Max Lithium Ion batteries, (1) Charger, (1) Blow Tube, (1) AFS Spool and (1) Guard.