... 8-1.9mmHelical wire dia1.3-1.4mmThe standardTwin ;494 ,532,608The spring quantity9*38 ;10*38;11*38Lastis ... 8-1.9mmHelical wire dia1.3-1.4mmThe standardFULL ;494 ,532,608The spring quantity9*40;10*40;11* ... 8-1.9mmHelical wire dia1.3-1.4mmThe standardQUEEN ;494 ,532,608The spring quantity15*40;16*40;18*40Lastis ... 8-1.9mmHelical wire dia1.3-1.4mmThe standardKING ;494 ,532,608The spring quantity20*40;21*40;23* ...