Greenworks 0.065" Single Line Replacement String Trimmer Spool (3-Pack) 29252. Features: Single line feed. Easy to remove and replace. Each spool contains approximately 20 ft. of 0.065 in. diameter trimmer line. Fits Greenworks 21062, 21602, 21222 and 21132 string trimmers. Note: Does not fit any other brand string trimmers. Recommended for use with corded and cordless string trimmers using .065" diameter line. Greenworks offers a range of systems to choose from in corded and cordless tools. Leading in innovation, the cordless lawn system offers a variety of tools to get all your yard work done quickly and efficiently. Whether you need something economical or with greater performance, the Greenworks Cordless Lawn Tools provide reliable options without the hassle of gas or the high cost of operation throughout the years. Get started within seconds and leave the gas hassle behind. Choose from trimmers, chainsaws, mowers, snow throwers, dethatches, pressure washers and more.