American Lawn Mower SK-2 Reel Mower Sharpener keeps your push mower blades in the best shape. This saves you time and effort when mowing your lawn because the sharp blades can easily trim grasses and weeds in one go. Maintaining your lawnmower blades doesn't have to be difficult. You can do it at home easily and safely with this lawn mower sharpening kit. It contains a detailed manual, so you can never go wrong when sharpening your lawnmower blades. For use with Scotts 16" Manual Reel Mower, Great States 14" Manual Reel Mower, Scotts 14" Manual Reel Mower, Great States 18" Manual Reel Mower, Scotts 18" Manual Supreme Reel Mower, Great States 16" Manual Reel Mower, Scotts 20" Manual Reel Mower, Earthwise Power Tools by ALM 20" Manual Reel Mower with Trailing Wheels, Earthwise Power Tools by ALM 20" Manual Reel Mower with Trailing Wheels, Scotts 20" Manual Reel Mower with Grass Catcher, Great States 16" Manual Reel Mower.