Ours 0.065inch*16ft. Single Line Auto Feed Spool/Weed Eater Spools For Greenworks 29252 String TrimmersCompatible With All Greenworks Single Line String TrimmersTool-Less Installment, Pops In And Out Of Trimmer For Ease Of Use Compatible with Greenworks Single Line 24V and G-MAX 40V String Trimmer Models24V string trimmers- 21342, 2100302, 2102902, 210320240V string trimmers- 21302 and 21332 Specification: String Trimmer Line Material: Nylon. Size: 16ft 0.065 inch. Cap material: ABS. Line Color: Blue Package included: 6 x String Trimmer Spool Line; 1 x Cap cover Note: This spool is NOT compatible with the Dual Line string trimmer. When using this product, protective measures should be taken to avoid being scratched by the trimmer line. Key Features: