Strong enough, can be used with heavyweight material like blankets, wool, leather, canvas, vinyl, upholstery and more<br> Widely used as quilt safety pins, also used for keeping scarf from slipping off, securing mattress, clothing or even jewelry making and craft making<br><br> <b>Specification:</b><br> Qty: 20pcs<br> Length: 7.5cm/3inch<br> Width: 1.5cm/0.6inch<br><br> <b>Package included:</b><br> 20 x extra large safety pins<br><br>