HIGH QUALITY - Alamic safety pins are made of high quality metal, durable and very sturdy, not easy to bend. SIZE - Length: 4 inch/100mm. WIDE APPLICATIONS - Great for blankets, crafts, skirts, sweaters, mattress pads, quilters, picnic tablecloth and more. Can be used in school, office, home, kitchen, etc. STRONG AND STURDY - They are sharp and sturdy enough to penetrate and put out thick clothing or blanket. Strong enough for use with heavyweight material like wool, leather, canvas, etc. WHAT YOU GOT - 15x Alamic 4 inch safety pins. Alamic Safety Pins Brooches 4 Inch/100mm Heavy Duty Blanket Pins for Blankets, Crafts, Kilts, Skirts, Sweaters, Shawls - 15 Pack (Black)