SCHMETZ-Leather Machine Needles. Schmetz quality sewing machine needles have been manufactured to exacting standards since 1851. The choice of discriminating sewers world wide, only Schmetz provides the uncompromising, consistent quality that produces the perfect stitch every time. These needles were made especially for use with leather, artificial leather and heavy non-woven synthetics and can be used with all brands and most models of sewing machines. This package contains five 100/16 needles. Imported.