4YourHome Spool Cap & Spring to Fit Black & Decker Weed Eater Trimmer Dual Line 4YourHome compatible Black & Decker trimmer spool cap cover & spring set Replaces Black & Decker Part RC-100-P Replacement Bump Cap Cover & Spring, please note the spring will not be required if you have cordless model. Fits Black & Decker AFS Automatic Feed Spool Dual-Line Lawn Trimmer Weed Eater Edger Suitable for the following models AND MORE! - CST1000, CST1100, CST1200, CST2000, GH400, GH500, GH600, GH610, LST120, LST136, LST220, LST1018, NST1018, NST1810, NST2018, NST2118, ST7000, ST7200, ST7700, ST7701