The Cult-Werk "GT" tank covers cover the opening on the rear triangle frame of your Harley and cover the tank. Made of ABS plastic, CNC milled on the most modern 5-axis machining centers, 100% fit, OEM quality. A triangular opening was milled out in the tank cover, which is closed with the supplied grille! Gives the bike a super cool look! Complete set (2 pieces - left and right) including grid!