Sold in packs of 2000 (2000 caps, 1000 sockets, 1000 studs)
Size 20, also called T5. The cap has 12mm of diameter.
For any other colors, feel free to contact me and I'll gladly look with you if I can get it and when it would be delivered. I have access to any of the colors on this chart in the mat or glossy finish.