Features:* .* Top quality replacement strummer head cover and complete spool and line * No tools needed to install.* Snaps in place over the spool line.* Snaps in place quickly and easily without the need for tools for an effective spool.* Protects your line and keeps it on your string trimmer.* Automatic line replenishment: the cutting line is automatically completed and therefore always has the perfect length.* Line spool change tool-free: a few simple steps allow you to change the line spool without tools.* Flexible use: the robust cutting line effortlessly reaches hard-to-reach areas in the garden.* Suitable for Karcher all 18V cordless strippers* Replace number: 2.444-017.0Specifications:Thread thickness (mm): 2Thread length per spool (m): 3.4Package contents:3 * thread spoolsNote:1.Actual item colors may vary slightly from picturesDisplay on website caused by many factors, such as the brightness of your monitor and the brightness of the light.2. Please allow slight manual measurement deviation for the data.