An edger operates with a lithium-ion battery that can be changed regularly. The long life span of this battery provides consistent power while the edger is in use. The edger is powered at 18 volts with a 9-inch serrated blade. The height settings can be adjusted and locked in on the edger to the preferred depth. This setting determines the depth of cut the edger will make into the soil. By adjusting the lever on the edger, the wheel is moved either upward or downward; consequently adjusting the blade height in relation to the ground. There are four position depth adjustment options to choose from depending on your preference. The adjustable handles on the edger can be easily set to the preferred height of the person using it.  The edger functions better when it is used on a straight line, with the right angle. This is the reason some edgers have two wheels on both sides that move at a steady pace. Having the wheels on the concrete gives the blade on the edger enough room to work. After assembling the edger and adjusting the cutting depth, it is ready to be turned on. Before the edger can be turned on, the safety lever switch has to be held down. When the trigger is turned on with the safety level held down, the blades start spinning. The spinning action of the blades propels it forward. Since it is electric, there are no carbon emissions. The edger works without a cord and can be used anywhere being very lightweight. It has a plastic blade guard that protects the blade from any stones that get knocked out of the ground. When the edger is in use, the grass deflector ejects the edged grass, in a controlled direction. With the cut depth set, the blade slices into the grass, as the edger is wheeled through the lawn. After edging you can stop the edger by releasing the switch trigger. This automatically resets the lock-out to the locked position.