i still have several of those. i don't know if they're made anymore, but i used them for hemming --everything. the numbered increments were for measuring the depth of the hem on sleeves, skirts etc. before i learned to quilt i sewed my own clothing, then for my son, home dec -draperies, curtains etcetcetc. they are good still for binding while finishing with hand stitching. mine are from the 70's & the spring steel has as firm a hold now as ever.