[7mm]

[10mm]

■ Size: Head diameter approx. 0.4 inches (10 mm) x feet approx. 0.2 - 0.2 inches (5 - 6 mm). ■ Material: Brass. ■ Quantity: 20 pairs, no hammers. ■ Not only can it be used for reinforcing the sewing of the fabric, but also for decoration such as putting studs on clothes or bags.

(From Amazon.co.jp)