General description Replacement spools for brush cutters, designed for efficient cutting and chopping. This set includes 4 pieces of 10 m spools, compatible with the original spools FLY021 and 513937190. Technical specifications Line diameter: 1.5 mm Length per spool: 10 m Compatibility and accessories Compatible with various Flymo brush cutters including: 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 Multi Trim 250D/250DX/300D/300DX Power Trim (pnc 9648641) Power Trim 500/700 (pnc 9648596/7) Revolution 2000/2300/2500 Twist and Edge Installation Easy to install: Simply remove the old coil and replace it with a new one. Usage Durable material: Made of ABS and high-quality nylon for long-lasting performance. Soft and flexible design allows the line to stretch and absorb shocks from hard surfaces. Self-loading double spool simplifies the task of winding spools by hand.