Item description according to supplier: Ideal for pinning hard surfaces (wood and tight fabrics) without harming oneself. Thanks to its flat head, these pins can go under the presser foot of the sewing machine to make your work easier. Thanks to their flawless tip, these pins will go through your most resistant fabrics without leaving any trace and without damaging the fabric. BOHIN offers its pins in boxes of 60, 100, 500 and 2,000 in 2 sizes: 30 mm and 45 mm.
