FK-Spinner, 152 mm Graupner 1387.152 A range of spinners ideally suited to models with glowplug motors. The CFRP spinner cap is deliberately supplied uncut, i.e. without propeller notches, so that they can be fitted to propellers with two, three or four blades. Set contents: 3 mm aluminium backplate, hand-made CFRP spinner cap moulded in high-strength carbon fibre cloth, clear polished external surface,with socket-head retainer screw.