This is a reel lawn mower blade sharpening kit that includes the materials you will need to sharpen your blades. You will need to follow the instructions carefully. I used this on a Remington reel mower and it worked out well. You will need to remove the wheel cap on one side of the mower and insert the manual bar to turn the blade in reverse and sharpen the blade after brushing on the grinding formula. You may also need to turn a screw or bolt on your mower to adjust the blade angle to cut properly. This is an affordable kit that will work with many reel mowers and help you continue using the mower for many years. This is definitely worth getting if you have a compatible mower.