This set includes 100 black gunmetal button spike and stud metal screw-back pieces, each measuring 8mm by 8mm. Designed for easy application, these screw-back spikes ensure a smooth finish without casting lines. The durable plating maintains vibrant color and long-lasting quality, making them suitable for a variety of projects. Historically, studs have been used by ancient civilizations such as the Samurais, Celts, and Romans, and today they are popular in fashion, adorning jackets, tops, pants, shoes, and more. Each set comes with a convenient zip storage bag for organization. Please note that slight color variations may occur due to lighting and monitor settings. Sizes may appear larger in images, so attention to dimensions is advised. Enjoy a 60-day warranty with proof of purchase, offering hassle-free refunds or replacements. Perfect for crafts and DIY projects, these studs add a unique, dynamic touch to your creations.