[Compatible Models]: Spool model: 29242/29082, Compatible with for Greenworks string trimmer models 21212 and 21272.
[]: ABS spool & durable polyamide nylon line, flexible. Aerodynamic shape allows less drag for more efficient cuts. With the auto feed system, the replacement spool eases the tedious work of hand-winding spools.
[Size]: grass trimmer spool line diameter 0.065 inch to fits line hole perfectly. Spool line length 27ft provide a wider range of mowing.
[Easy To Install]: Free a cap cover. Automatic winding allows you to complete spool changes quickly.
[Precautions for use]: Wear safety goggles and long pants when using this product to avoid injury from spilling lines. This weed eater parts refill is only suitable for young grasses. Strong weeds use other tools such as blades to trim.

Easy to Install:
1. Turn off the trimmer and remove the spool cap.
2. Replace the spool into the trimmer head.
3. Snap the line in the slot and line it up with the retainer.
4. Cover the cap.
Material:ABS, nylon
colour:Black + Blue

Package Contents:
3 x Dual line string trimmer spools