The black and decker a6487 insert line is a genuine replacement trimmer line designed specifically for use with black and decker gl680, gl685, and gl690 grass trimmers. Sourced directly from black and decker, this is an oem specification line rather than a generic aftermarket alternative. Using genuine replacement parts helps maintain the performance and reliability your trimmer was designed to deliver, ensuring a consistent cut and proper compatibility with the spool mechanism. Supplied as a pack of 10 individual insert lines, this product offers excellent value for those who maintain their trimmer regularly or put it to frequent use. Having spares to hand means less downtime during the cutting season. Features and benefits bull genuine black and decker oem replacement line for assured compatibility bull fits gl680, gl685, and gl690 trimmer models bull pack of 10 inserts for convenient stock of spares bull designed to maintain original trimmer performance contents pack of 10