stabilizing legs is made up of a curved section 16 containing stabilizing legs 18 and a straight section 20 the width of the orifice w is about 84 microns the angle between the vertical axis of symmetry and the straight section 20 of the orifice u03b1 is 0 u00b0 the angle between the stabilizing legs 18 u03b2 is about 30 u00b0 the angle u03b3 is about 60 u00b0 which is one half the angle subtended by the curved section 16 of the orifice the length of the straight section 20 of the orifice a is about 23 w the diameter at the extremity of the orifice b which is in the shape of a circle 22 is about 1 3 w the linear distance between the ends of the straight sections 20 of the orifice is about 32 w the linear distance between the vertex on the vertical axis of symmetry and the extremity of a stabilizing leg 18 c is about 16 w the linear distance between the vertex on the vertical axis of symmetry and the center of the orifice in the curved section 16 d is about 21 w the length of each stabilizing leg 18 is about 5 w the number of stabilizing legs 18 is 5 a stabilizing leg 18 is located on the vertical axis of symmetry and the other stabilizing legs 18 are substantially symmetrically spaced around the vertical axis of symmetry in reference to fig4 of the drawings the 34 u 34 shaped orifice of a preferred spinneret with stabilizing legs is made up of a curved.