DRITZ-Metal Seam Gauge. A small multi-purpose metal ruler with a point turner and sliding right-angle marker that stays in place for repeated marking. Use the point to gently push out corners on collars, lapels, cuffs, pockets and waistbands. Use the sliding marker to measure and mark hem depths, seam allowances, establish button hole spacing and length and to evenly space tucks and pleats. This package contains one 7 inch metal ruler. Imported.