Helicore brand is identified by the royal blue thread with yellow spiral at the ball end. Tension is indicated by a secondary winding at the peg end: yellow for light, red for heavy.
$30.00 E is aluminum wound on stranded steel core. Medium only
$21.00 A has titanium winding – Medium is black at peg end
$23.00 D has nickel winding – Medium is yellow at peg end
$52.00 G has silver-tungsten winding – Medium is red at the peg end.
$63.00 C has silver-tungsten winding – Medium is purple at the peg end
$159.00 Set ADGC