Greenworks 12-Inch 24V Cordless String Trimmer, 2.0 AH Battery Included 21342 Pivoting head allows for edging and trimming capability with edging wheel Electric start eliminates gas hassle, less maintenance and zero fumes;Handle Type: Wrap-Around 12-inch cut path with .065 single line auto feed for easy line advance Shaft length (inch): 40. Compatible GreenWorks Replacement Spool, Model 29252 and 29092 Battery and charger included. Compatible battery models 29842 and 29852 and charger 29862