Strimmer Spool ReplacementOur strimmer spool replacement set include 2pcs trimmer spools , the spool length is 36 ft / 11 m, the diameter is 2.5 inch / 64 mm and the height is 0.98 inches/25 mm. High Efficiency: It is less drag for more efficient cuts . The Autofeed System Replacement Spooleases the tedious work of hand-winding spools and save your time. Premium QualityPremium ABS and Nylon fabric.The Strimmer Spool Line is made of high quality ABS and nylon resin fabric. which gives the string trimmer line better flexibility and durability Easy InstallationNo other tools are required, just remove the old spool and replace it with a new one, easy and quick to operate. keep your grass trimmer performing. Compatibility:The replacement spools are compatible with Flymo Modles:CONTOUR 500 XT, POWER TRIM 500 XT, MINI TRIM AUTO ST/XT/PLUS XT.MINI TRIM CONTOUR XT. SPEEDI-TRIM. CONTOUR. CONTOUR 500/700.MINI TRIM AUTO/AUTO, MULTITRIM 250D/250DX/300D/300DX.POWER TRIM (PNC 9648641). POWER TRIM 500/700 (PNC 9648596/7) REVOLUTION 2000/2300/2500 AND TWIST AND EDGE .