Size:0.095" By 1/2" Product Description Commercial Grade co-polymer trimmer line in a silver color. The design is based on cutting edge technology gives longer life, better performance, faster acceleration, level flight characteristics, which allows for reduced fuel consumption and makes it quieter to run. Fits all standard trimmer heads. Includes free line cutter From the Manufacturer Husqvarna 639 00 51-02 TitaniumForce 1/2 lb .095. The Husqvarna 639 00 51-02 TitaniumForce 1/2 lb .095 is a commercial grade co-polymer trimmer line in a silver color. The Husqvarna 639 00 51-02 is a patented design based on cutting edge technology gives longer life, and better performance. The TitaniumForce thread has fast acceleration, and level flight characteristics, which allows for reduced fuel consumption and makes it run quieter. The Husqvarna 639 00 51-02 TitaniumForce 1/2 lb .095 fits all standard trimmer heads.