Jewelry Findings, Brass Ball Head Pins, GoldenSize: about 0.5mm thick(24 Gauge), 20mm long, head: 1.5mm, about 170pcs/10g.Easy to use. These Ball Head Pins can be used for a variety of design uses. For quick and easy earrings, simply add a bead, create a loop, then attach to an earwire. Caused by the property of material, pins may be bent but that won't impair their use. Caused by the property of material, pins may be bent but that won't impair their use.