Brass Flat Head Pins, Cadmium Free & Lead Free, Golden ColorSize: about 0.75~0.8mm thick, 5. 0cm long, head: 2mm; about 250pcs/50gA jewelry-maker's staple, Flat Head Pins allow you to make earrings, pendants, links and drop embellishments faster than lightning. Caused by the property of material, pins may be bent but that won't impair their use.