Our blades come in several sizes. The number of the blade correlates to the number of needles within the blade. The needles are parallel and curve up in a gentle arch. The 14 Blade is slightly thicker than the 12 Blade and will enable you to reach the depth necessary for hair strokes to last. Though it is more difficult to draw a curve with this blade, straight hairs can be drawn easily. This blade is ideal to put the initial structure in or alternatively for the second or third pass.