Black and Decker LST420 20-volt Max Lithium High Performance Trimmer and Edger, 12-Inch and String Trimmer Replacement Bundle Black and Decker LST420 20-volt Max Lithium High Performance Trimmer and Edger, 12-Inch BLACK+DECKER AF-100-3ZP 30-Feet 0.065-Inch Line String Trimmer Replacement Spool, 3-Pack