Klasse' Embroidery Needles Size 75/11 5 German-Engineered Steel Machine Needles This needle type is for geniune leather The chisel point penetrates into difficult to sew projects Do not use this needle with textiles or synthetic suede or leather With a unique curved design at the clearance-above-the-eye "CAE" stress point distributes pressure equally which makes Klasse needles much stronger then other flat conventional needles