Compatible with Craftsman 13" and 15" corded string trimmers. Fit for Craftsman CMCST900D1 Type 1, CMESTE920 string trimmers Compatible with Craftsman 71-30378, 71-30383, 71-98981, 71-98982,71-99006 string trimmers 71-99006 for Craftsman 0.065" Dual Line Auto Feed Replacement Spools High-quality ABS spool & durable polyamide nylon thread, flexible and long service life. Aerodynamic shape allows less drag for more efficient cuts Quality Assurance:If you have any quality problems, please feel free to contact us,we will provide appropriate solutions within 24 hours THTEN 71-99006 Weed Eater Spools Compatible with Craftsman 71-30378 71-30383 71-98981 71-98982 CMCST900D1 Type 1, CMESTE920 Cordless String Trimmer 0.065 inch Dual Line Auto Feed Replacement Spool