String Trimmer Head | How to install new trimmer line on a traditional bump head - YouTube
Hyper Tough 20V Max 0.065" x 16.4 ft 2-Pack Spool & Trimmer Line Nylon - Walmart.com
Shakespeare Wind-N-Go Bump Head String Trimmer Replacement - Universal Fit, Auto Winding Technology, Superior Durability - Includes Adapter Kit in the String Trimmer Heads department at Lowes.com
Replacing a Weed Eater String (String Trimmer Line) | The Home Depot - YouTube
How to Replace the Line on a Black and Decker Trimmer: 12 Steps