18-GAUGE CONDUCTOR 60% ALUMINUM BRAID 100% FOIL SHIELDFOAM PE DIELECTRIC SEQUENTIAL FOOT MARKINGS UL LISTED FEATURES INNOVATIVE SPOOL SYSTEM WITH A CUTOUT SPANNING ENTIRE WIDTH OF THE BOX SO CABLE MOVES FREELY FROM SIDE TO SIDE ENSURING DURABILITY OVER MULTIPLE INSTALLATIONSWOODEN SPOOL CAN BE REMOVED FROM BOX & TRUCK-MOUNTED FOR HASSLE-FREE RUNNING & INSTALLATIONBARE COPPERBLACK500-FT SPOOL BOXUPC : 086844411585Shipping Dimensions : 14.40in X 13.90in X 12.60inEstimated Shipping Weight : 37.6