Set of 3 pistols or parrot to draw curves and armholes. They are mainly used either when you create a pattern from a patronage guide. For a bodice, trace the armhole by passing by the 3 points defined by: the shoulder, the underside of the armhole and the midfielder is when you adjust a boss: we draw the new curves after having removed (or added) the centimeters necessary for size and hips for example. Pistol lengths: 32 cm, 17 cm and 14 cm. Material: Transparent plastic.