Husqvarna 639 00 51-05 TitaniumForce Trimmer Line - 1-Pound .105-Inch

This design is the best I have found for the string trimmer. It is strong and cut the grass and thick weeds quickly. The indentations in the line seems to keep the line from fraying, and might also help the line break off at the right length when bumped out, as this seems to happen easier with this type of line than regular smooth line.

We use all the time. Really holds up.

This product works great it's a lot better than the 95 stuff that you normally can get this lasts a lot longer on my string trimmer

I was hesitant about trying a round line. This stuff is the best I've ever used. Cut clean, tracked straight, and handled some very large weeds.

Great product.

I use this string on my Husqvarna forest brush cutter 545 FXT (45 ccm). This string has good resistance for this powerful enging and lasts pretty long. Will certainly buy a new set when running low.The 545 comes with a saw blade for heavy cutting of small trees. Replace the blade with a T45 spool head and this string. We have a yard in Sweden where I have to cut a lot of high grass as well as cleaning up jobs of small trees with the blade. My unit has heated up handles since some job is done in winter/fall.

i bought because the reviews were so good but after using it was just ok, next time i would just buy line at Lowes and its a little cheaper

The best line I have tried. Will definetly buy again.