Grass Gator 8030 EZ Electric Replacement String Trimmer Head The EZ Electric is not recommended for battery powered trimmers The line installs into the EZ Electric in seconds. Push the pre-cut line into the head and it automatically locks into place - ready to use. The Grass Gator EZ Electric is excellent for both grass and weeds, and the tough, .080 diameter, line provides excellent service and longevity.