CRAFTSMAN WC210 25-cc 2-cycle 17-in Curved Gas String Trimmer with Edger Conversion Capable at Lowes.com
P25 P35 Trimmer Head For Weed Eater MX557 Craftsman 358791050 358791051 358791590 358791800 358791801 358795810 358795811 - AliExpress
Universal Trimmer Head Replacement, Bump Feed String Trimmer Head, Compatible with Speed Feed and Most Weed Eater Brands | Terre Products
MTD Genuine Factory Parts SpeedLock Fixed Line Conversion Kit for 2-Stroke 25 cc Troy-Bilt, Craftsman and Bolens Trimmers with Small Bump Heads 49MSLOCK953 - The Home Depot
Arnold String Trimmer Head in the String Trimmer Heads department at Lowes.com